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Sustainable Cooling: Electrocaloric Cooling Breakthrough

Posted on by dishanth
Sustainable Cooling: Electrocaloric Cooling Breakthrough

As heatwaves intensify across the globe, the demand for air conditioning and refrigeration skyrockets. The ballooning demand for cooling strains energy infrastructure and escalates emissions from vapor compression systems. These conventional refrigerators and AC units rely on greenhouse gases and inefficient mechanical compressors that have reached their efficiency limits. With little room for improvement, vapor compression technology cannot sustainably shoulder doubling cooling demands. Scientists urgently search for climate-friendly innovations before the warming world overheats.

In a breakthrough discovery, researchers at the Luxembourg Institute of Science and Technology (LIST) pioneer a radically different cooling approach harnessing the electrocaloric cooling effect. This phenomenon describes particular ceramic materials that heat up or cool down when electric fields flip on and off. By cleverly leveraging this conductivity toggle, the LIST team designed an assembly that can pump heat without noisy, energy-draining compressors.

Electrocaloric cooling is a fascinating phenomenon where certain materials experience a reversible temperature change when an electric field is applied. In simpler terms, you can directly use electricity to manipulate their temperature, creating a cooling effect. This opens up exciting possibilities for energy-efficient and environmentally friendly cooling technologies.

The regenerative system developed by LIST alternates layers of electrocaloric capacitors with liquid coolant. Switching an electric field pulls heat from the fluid into the capacitors, cooling the system. Cutting voltage then dissipates the heat, so the cycle repeats. The smooth back-and-forth between hot and cold replaces high-maintenance mechanical parts with solid-state reliability. Scientists calculate that electrocaloric cooling efficiency leapfrogs vapor compression refrigeration by directly shuffling heat instead of wasting effort compressing refrigerants.

Since fluids naturally stratify by temperature, no added energy input is required to cycle hot and cold. The passive electrocaloric cooling generator minimizes electricity demands by exploiting thermodynamics rather than fighting against them. With game-changing energy savings over traditional refrigerator designs, this electrocaloric cooling technology paves the way for truly sustainable cooling.

Seeking real-world integration, LIST researchers collaborate with manufacturing partners to develop prototypes. The original discovery featured a single electrocaloric part, which limited heat transfer speed. The current regenerator assembly overcame this by interleaving many capacitors with parallel coolant channels. This boosts heat pumping capacity for powerful, real-world performance. Ongoing enhancements also aim to lower costs and extend operating lifetimes to enable widespread commercialization.

While the immediate goal focuses on eco-friendly refrigeration, the applications likely won’t stop there. Any process generating unwanted heat could benefit from electrocaloric cooling technology. Air conditioners, electronics cooling, industrial processes and even solar energy storage represent prospective opportunities. Because electrocaloric cooling systems thrive when miniaturized, microchip-level cooling also offers possibilities for computing breakthroughs.

For example, electrocaloric cooling films could provide on-chip cooling for high-performance computer processors, enabling faster computing speeds. Electrocaloric cooling systems can also be used to condense water vapor in air conditioning and dehumidification applications. This could allow environmentally-friendly refrigerants like water instead of HFCs to be used in vapor compression HVAC.

Additionally, the flexibility of electric-powered cooling lends well to renewable energy integration and smart grid load balancing. Electrocaloric heat pumps powered by wind or solar electricity during times of excess generation could store thermal energy for later dispatch while synchronizing supply and demand on the grid. With materials and system configuration innovations, electrocaloric cooling technologies show promise for revolutionizing thermal management across many sectors.

Despite enormous promise, unanswered questions remain regarding large-scale manufacturing and durability. However, early indications suggest the regenerator’s simple solid-state design will prove reliable over long stretches. By dodging complex mechanical components, the approach naturally steers towards sustainability. Cooling demand will only climb higher as climate change continues, but creative solutions like the LIST electrocaloric cooling regenerator offer hope we can innovate our way to a cooler future.

 

 

 

 

Source  Happy Eco News 

Can we really fuel planes with fat and sugar?

Posted on by dishanth
Can we really fuel planes with fat and sugar?
As the politician next to him took out his phone for a selfie, Virgin Atlantic chairman Richard Branson peered into the camera, grinned, and did a double thumbs-up. The world’s first commercial airliner to cross the Atlantic using 100% biofuel had just landed in New York.

Virgin Atlantic’s Boeing 787 was powered not by fossil fuels, but plant sugars and waste fats – a form of so-called Sustainable Aviation Fuel, or SAF. A British Conservative MP posted his smiling selfie with Branson to the social media site X, formerly known as Twitter, and declared the flight “a significant UK aviation achievement”. (The flight was partly funded by the UK government.)

But not everyone is so sure that this represents the future of flying. The biomass required to make biofuel can come from a broad range of sources – plant material, food waste or even algae. While biofuels release CO2 when burned, some consider them a sustainable option because they are renewable and biomass removes some CO2 from the atmosphere as it grows.

The problem is the sheer volume of biomass needed to power an industry as fuel-hungry as aviation. One academic paper published in August estimated that, if you were to grow sugar cane and use that to make biofuels for commercial jets, you’d need 125 million hectares (482,000 sq miles) of land – roughly equivalent to the surface area of the states of California, Oregon, Washington, Nevada and Louisiana combined.

That’s a lot of land. And if you tried using waste sources of biomass alone, you wouldn’t have nearly enough to keep all the world’s planes in the air, say some experts. The airline industry is currently responsible for about 3.5% of greenhouse gas emissions, roughly the same as the entire country of Japan, which is one of the world’s highest emitters.

Proponents of SAF argue that the fuel could make flying much greener than it is currently. It’s just that scaling SAF production up is a gigantic challenge.

“What they’re doing is quite important, they’re just demonstrating that the flight is perfectly safe, there are no problems with the fuel,” says David Lee, a professor of atmospheric science at Manchester Metropolitan University, who studies the impact of aviation on the climate, and who was a co-author of the paper that investigated the feasibility of transitioning to SAF. By switching to SAF over fossil fuels, you can achieve carbon savings of around 70%, says Lee, though this depends on the specific source of biomass you choose.

Lee notes that international regulations don’t actually allow for flights using more than 50% SAF as fuel at the moment, so Virgin Atlantic’s hop across the pond required a special permit from the UK’s Civil Aviation Authority.

It all adds up to a successful proof-of-concept. But it would be difficult to power more than one glitzy flight with 100% SAF today. “You just can’t get hold of the damn stuff,” says Lee. “If we want to do engine tests, we have difficulty purchasing the fuel.”

It’s an issue that Virgin Atlantic itself acknowledges. SAF accounts for just 0.1% of all aviation fuels consumed. The International Air Transport Association predicts that the airline industry will require 450 billion litres of SAF by 2050 – only 300 million litres were produced in 2022. However, to date, SAF has helped to fuel hundreds of thousands of flights – at least as part of a blend with fossil fuels. In the US, SAF production is estimated to reach 2.1 billion gallons (7.9 billion litres) annually by 2030 – well below President Biden’s target of producing 3 billion gallons (11.3 billion litres) of the fuel annually by that year.

Ramping up SAF production is difficult. In a Royal Society report published earlier this year, Lee and colleagues analysed the UK’s potential to produce its own SAF for commercial flights. “We concluded that there wasn’t really enough land,” he says. Around the world, competition for land is fierce. We will need an additional 70-80 million hectares of cropland by 2030 globally, estimates management consultants McKinsey & Company – that’s an area bigger than the state of Texas. The vast majority of this new cropland (70% ) is needed to grow crops for feeding livestock. Only 10% of the total area required would go towards biofuel production in McKinsey’s scenario.

Some SAF comes from waste fats, for example, from food production processes. Relying on such sources could, in theory, lessen the need for expanding crop cultivation just to make biofuels. But there’s far too little waste available, says Hannah Daly at University College Cork, in Ireland. Even if you gathered up all the biomass waste available in the Republic of Ireland, she says, it would only allow you to replace about 4% of fossil fuels consumed by the country. The calculation would be similar in other countries, she suggests.

“There’s substantial risk that that ‘waste cooking oil’ could be fraudulently relabelled virgin palm oil,” says Daly. “That could be contributing to deforestation.”

Some alternatives to SAF, including hydrogen fuel and electrification, are not currently viable options for large commercial flights.

Chelsea Baldino, senior researcher at the International Council on Clean Transportation and her colleagues have calculated that SAF made from waste sources in the UK would only be able to meet a maximum of 15% of UK jet fuel demand in 2030. The ICCT also estimates that just 3.3-4.2 billion gallons of SAF could feasibly be produced domestically in the US by 2030, while in 2019, US airlines used 23 billion gallons of jet fuel.

“Biofuels providing the significant greenhouse gas savings needed to decarbonise jet fuel will not be available at scale,” she says. E-fuels – synthetic versions of fossil fuels made using renewable energy – will be “essential”, according to Baldino. E-fuels require a lot of energy to produce but they have the advantage of not introducing additional carbon into the atmosphere, as would be the case with newly extracted fossil fuels.

Josh Moos, an economist at Leeds Beckett University in the UK, lambasts Virgin Atlantic’s 100% SAF flight as “greenwashing”.

“The science would suggest that there really is no such thing as sustainable aviation,” he says. It would be better to reduce demand for flights globally, perhaps by placing a levy on frequent flyers or by increasing taxes on the airline industry, he argues. Moos acknowledges that such measures are “politically and socially unpalatable”, though both he and Daly suggest they might be necessary if we are to meet net zero goals.

A spokeswoman for Virgin Atlantic says, “We are committed to achieving Net Zero 2050 and have set interim targets on our pathway to get there, including 10% Sustainable Aviation Fuel by 2030.”

She notes that the 100% SAF flight from London to New York relied entirely on waste biomass and that the demonstration was “an important step, but not the end goal” in the firm’s efforts to scale up its use of SAF in the coming years.

Some sceptics remain unconvinced. Daly, for one, points out that even if SAF does replace an increasing proportion of fossil fuels for aviation purposes, the overall benefit could be wiped out by the rapidly growing airline industry. Eurocontrol, a European air safety organisation, predicts that the annual total number of flights worldwide will reach 16 million by 2050 – an increase of 44% on 2019’s figure.

“I would love guilt-free flying myself – but it’s just not possible,” says Daly.

 

 

 

 

Source   BBC

 

 

New Carbon Capture Tech Turns CO2 into Solid Carbon

Posted on by dishanth
New Carbon Capture Tech Turns CO2 into Solid Carbon

New capture technology turns CO2 into solid carbon, a coal-like product that can be safely reburied.

Scientists may have discovered a groundbreaking new method to pull out of the air and convert CO2 into solid carbon flakes. Researchers at Australia’s Royal Melbourne Institute of Technology (RMIT) have pioneered an efficient carbon mineralization process using liquid metal catalysts. This technology could provide a sustainable way to capture atmospheric CO2 and safely store it long-term as a stable solid.

Most carbon capture techniques today focus on compressing CO2 gas into a liquid that is injected deep underground. However potential leakage risks make this method less than ideal for permanently storing billions of tons of carbon dioxide. We urgently need innovative solutions to remove and safely store the CO2 already overburdening our atmosphere.

That’s why RMIT’s new mineralization approach to turn CO2 into solid carbon is so promising. It converts greenhouse gases into inert carbon solids at room temperature. This offers a potentially cheaper, more secure form of carbon storage compared to current methods.

RMIT’s method utilizes molten liquid metals to trigger a chemical reaction, transforming gaseous CO2 into solid carbon flakes. This occurs at ambient temperature inside a simple glass tube device. The process works by sending CO2 into the glass tube containing a liquid metal alloy of gallium, indium, tin, and cerium. Running an electric current through the metal accelerates the carbon mineralization reaction.

Carbon steadily accumulates as a layer of solid flakes on the liquid metal surface and the only byproduct of the process is pure oxygen. The flakes are then removed allowing the process to continue indefinitely. Because this process occurs are room temperature, the energy requirements are far lower than other systems.

The researchers experimented with different metal compositions and temperature conditions to optimize the carbon conversion process. Once optimized, the system can continuously pull in and convert atmospheric CO2 into solid carbon without additional heat or pressure.

Unlike underground injection techniques, solid carbon can easily be collected for safe, permanent storage. The carbon solids could even be processed into materials like carbon fiber. And since the process only needs a small amount of electricity and air, it has minimal environmental impact or manufacturing costs.

Turning CO2 into solid carbon could be a more predictable, sustainable and longer lasting approach to carbon capture and storage. The RMIT team is already investigating ways to scale up the liquid metal carbon mineralization method. Adoption by power plants or heavy industry could significantly cut CO2 outputs.

Finding viable ways to remove excess greenhouse gases is critical to slow global warming. Since the Industrial Revolution, over 1.3 trillion tons of carbon dioxide have entered the atmosphere – and the pace is accelerating. New solutions like RMIT’s carbon mineralization technology will be essential to extracting legacy emissions already dangerously heating our planet.

 

 

 

Source   Happy Eco News

Nestlé & Cargill use cocoa shell in new lowcarbon fertiliser

Posted on by dishanth
Nestlé & Cargill use cocoa shell in new lowcarbon fertiliser

Approximately 5% of global greenhouse gas (GHG) emissions are currently produced from the production and use of conventional fertiliser, and more than half of the carbon footprint of wheat grown in the UK is related to fertiliser use.

Nestlé UK & Ireland and Cargill have partnered to develop innovative solutions in regenerative agriculture. The initiative — a UK supply chain trial — aims to assess whether cocoa shells from a confectionery site in York could be used to create a low carbon fertiliser.

The trial to evaluate the fertiliser’s performance on crop production, soil health and GHG emissions reduction will last two years, and, if successful, could produce and offer up to 7,000 tonnes of low carbon fertiliser to farmers in Nestlé’s UK wheat supply chain. This amount of fertiliser equates to around 25% of Nestlé UK’s total fertiliser use for wheat.

“Farmers often find themselves to be among the first groups to be exposed to global issues, and these risks are then borne by the food system we all depend upon,” shares Matt Ryan, Regeneration Lead at Nestlé UK & Ireland.

“We have to find ways to build more resilience into the system and optimising our use of natural resources is a critical part of this.

“This project is a small, but very meaningful step towards a net zero future, where farmers, local enterprises, and nature all stand to benefit”

 

Reducing emissions across the supply chain

Cargill supplies the cocoa shells from its York facility where the shells are processed to become key ingredients in iconic products like KitKat and Aero.

Recycling valuable nutrients from waste streams within the food system provides a promising opportunity to create a lower emissions supply chain. Scaling up low carbon fertiliser production in the UK can provide farmers with a more sustainable product at a reliable price.

The trials, which were designed and are being overseen by York-based Fera Science Ltd, are currently taking place on arable farms in Suffolk and Northamptonshire. They are designed to investigate the performance of the fertiliser in terms of wheat yield and quality, as well as assess the impacts on soil biodiversity and GHG emissions in comparison to conventional products applied on the same farms.

“We have now finished harvesting and we’ve successfully grown a Winter wheat crop using this new fertiliser. We’ve compared two parts of the field, one which used the cocoa shell fertiliser, and one which used with the conventional fertiliser, and there is no significant difference in the yield so we can see that it works,” says Richard Ling, farm manager at Rookery Farm, Wortham in Norfolk, who supplies wheat to Nestlé Purina.

“We are really reassured with the results and are looking at running further trials. It’s a step change to be able to use a fertiliser made from a waste stream and see the same results as using a conventional product. It’s an exciting and promising time and we are pleased to be taking part in these trials to help reduce the carbon emissions from our farming.”

For all companies involved, the trial embodies their commitment to innovation, collaboration and sustainability throughout the supply chain. Alongside its pledge to net zero emissions by 2050, Nestlé has committed to sourcing 50% of its key ingredients from regenerative agricultural methods by 2030 and this project is an example of the innovative solutions supporting the company on that journey.

“Cargill and Nestlé have been working together for more than 60 years building resilient supply chains across communities where we both operate. We are excited to continue to build on this strong partnership through our innovative cocoa shell fertiliser trial,” says Sam Thompson, Global Engineering Lead at Cargill Cocoa & Chocolate.

“Together, we hope to contribute to a more sustainable future for the British farming industry.”

 

 

 

 

Source  Sustainability 

 

 

Mush-Rooms: How Mycelium Concrete Could Revolutionize Building Construction

Posted on by dishanth
Mush-Rooms: How Mycelium Concrete Could Revolutionize Building Construction

Mush-Rooms: Mycelium concrete (Myocrete) could revolutionize low-carbon building construction and provide another tool for building green.

A new paper published by the University of Newcastle has outlined a new method of creating a mycelium concrete construction material, with potentially far-reaching changes as a result.

The Need for Low-Carbon Building Materials

Concrete, by far, is the world’s most used building material. It is cheap, incredibly strong, and easy to manufacture. However, it carries costs elsewhere in our world.

The environmental impact of concrete manufacture, use, and transportation is incredibly high. Concrete production is responsible for 8% of all greenhouse gases worldwide, making it the second largest source of greenhouse gas emissions. Natural materials like mycelium concrete (myocrete) might be part of the answer.

Burning fossil fuels creates most of these greenhouse gases to heat the enormous kilns used to create concrete. As well as that, there are the negative effects of mining the sand and gravel required to create concrete, which disturbs the environment and destroys natural ecosystems.

There is also the fact that concrete production requires massive amounts of water, which puts a strain on communities and areas already in need.

There have been some developments to make concrete less environmentally damaging, such as improving the efficiency of kilns so they don’t require as much heat; however, by and large, concrete production and use have been disastrous for our world.

Nevertheless, new developments have been underway to replace this widely used building material, such as mass timber. However, a unique and potentially revolutionary new material could be just around the corner, and it’s something that you’re probably more used to seeing on your plate than in your buildings.

Mushrooms in Our Walls

Mycelium-based construction material research, including mycelium concrete, has been underway for several years, as the effects of concrete production have been well-documented for decades. However, so far, the ability to scale and use mycelium in construction has been limited by the available technology and methods.

Currently, the method used in creating mycelium-derived construction materials is by filling a rigid mold with a mixture of mycelium and a food source such as grain for the mycelium. This method can produce rigid shapes, such as bricks, which can be used in construction.

However, there are limitations to the usability of these materials. For one, the strength required to compete with concrete isn’t there, and the rigid mold limits the variety of shapes and structures.

A new method created at the University of Newcastle, dubbed mycocrete (mycelium concrete), could completely change this and how construction has been done. The way mycocrete works is similar to past methods, with some distinctions.

One of them is in the mold that the paste is put into; where previous methods used rigid molds, mycocrete uses a permeable knitted mold that facilitates the growth of the mycelium by the amount of oxygen available. This flexible mold also allows the mycelium to grow in shapes that otherwise would be impossible with a rigid mold.

The process works by filling the knitted mold with a mixture of mycelium, paper powder, paper fiber clumps, water, glycerin, and xanthan gum. This is then hung up in a dark, warm, humid environment to facilitate the mycelium’s growth.

The result is a mycelium-based material significantly stronger than conventional mycelium bricks, notably much stronger than the material created with rigid molds. This is due to the amount of oxygen the mycelium has access to, given the mold’s permeability.

Myocrete is Still in the Early Stages, Though

However, despite the team’s promising results at Newcastle, myocrete mycelium concrete based buildings are still quite far off.

While continuing to develop the mycelium compound is still of major importance, the main obstacle is the fact that the factories and industries that work with the construction industry will need to be re-tooled for mycelium concrete along with new installation equipment being implemented.

Nonetheless, they have created some interesting prototypes, including the “BioKnit” project. This project was created to demonstrate the use of alternative materials in solving conventional construction design problems.

The team created BioKnit as one piece to limit weak spots inherent in joinery. Dr. Jane Scott, the author of the corresponding paper, said, “Our ambition is to transform the look, feel, and well-being of architectural spaces using mycelium concrete in combination with biobased materials such as wool, sawdust, and cellulose.”

With the priority being placed on reducing the environmental impact of construction, this new method could completely change the way we live and the spaces we live inside.

 

 

 

 

Source Happy Eco News

New Ocean Carbon Removal Tools Developed

Posted on by dishanth
New Ocean Carbon Removal Tools Developed

What is Ocean Carbon Removal?

Ocean carbon removal is a process that aims to remove excess carbon dioxide from our oceans. As we all know, the ocean plays a critical role in regulating our planet’s climate by absorbing large amounts of CO2 from the atmosphere. However, this absorption has a limit, and as we continue to emit more and more greenhouse gases into the atmosphere, the ocean’s ability to absorb CO2 is reaching its threshold.

The process of removing carbon dioxide involves capturing it directly from seawater or indirectly through biological processes, such as photosynthesis carried out by marine organisms like phytoplankton. Once captured, it can be stored permanently in deep-sea sediments or used for various industrial purposes.

Ocean carbon removal has gained significant attention recently due to its potential for reducing atmospheric CO2 levels and mitigating climate change impacts on marine ecosystems. Additionally, this solution can generate ocean-based carbon credits, which provide financial incentives for companies investing in sustainable practices that reduce their carbon footprint.

Ocean carbon removal offers promising solutions for mitigating climate change while protecting our oceans’ health but also requires careful evaluation of its environmental risks and economic feasibility before implementation at scale.

The company Planetary Technologies has released an innovative ocean-based carbon removal protocol. The protocol aims to provide a standard for measuring and verifying the effectiveness of ocean-based carbon removal projects.

The technology adds a mild alkaline substance to the ocean, which reduces acidity and converts dissolved carbon dioxide into a salt that remains dissolved in the ocean for up to 100,000 years. This process allows for more atmospheric carbon dioxide to be absorbed by the ocean.

The company has been testing its technology in the U.K., Canada, and the U.S. and claims it could remove up to 1 million tonnes of carbon dioxide from the atmosphere by 2028 while restoring marine ecosystems. The publication of the protocol is a major step forward for the nascent market for marine carbon removals.

 

How does it work?

Ocean carbon removal is a process that involves removing carbon dioxide from the Earth’s atmosphere and storing it in the ocean. The process works by using natural or artificial processes to convert atmospheric CO2 into dissolved bicarbonate ions, which then sink and become trapped in deep-ocean sediments.

Natural processes include photosynthesis by marine organisms such as phytoplankton, while artificial methods involve injecting CO2 directly into seawater or using specialized equipment to capture CO2 from the air.

One of the key benefits of ocean carbon removal is its potential to mitigate climate change. By removing excess CO2 from the atmosphere, we can slow down global warming and reduce its impacts on our planet.

However, there are also concerns about how this technology might impact marine ecosystems. Injecting large amounts of CO2 into seawater could alter pH levels and affect marine life while capturing too much atmospheric CO2 could disrupt natural carbon cycles.

Ocean carbon removal has enormous potential for reducing greenhouse gas emissions and mitigating climate change. However, careful planning and monitoring will be necessary to ensure that these technologies are deployed safely and sustainably.

 

What are the benefits?

The benefits of ocean carbon removal are numerous and far-reaching. One of the primary benefits is that it provides a solution to one of the biggest challenges facing our planet today: climate change. By removing carbon from the atmosphere, we can slow down global warming and reduce its devastating effects.

In addition, ocean carbon removal has a lower environmental impact than other methods, such as land-based solutions or direct air capture. This is because oceans cover more than 70% of the Earth’s surface, making them an ideal location for large-scale carbon sequestration projects without disturbing natural habitats or ecosystems.

Another benefit is that it can create new economic opportunities in coastal communities through jobs related to monitoring, maintenance, and technology development. Furthermore, companies can earn ocean carbon credits by participating in these programs, encouraging investment in sustainable practices while funding future initiatives.

Ocean carbon removal helps protect marine life by reducing acidification levels caused by excess CO2 emissions. Acidification harms many marine species, including coral reefs which support millions of people worldwide through fishing and tourism industries.

 

What are the Concerns?

Despite the numerous benefits of ocean carbon removal, there are also concerns that need to be addressed. One of the primary concerns is the potential environmental impact on marine ecosystems. Large-scale ocean carbon capture technologies deployment may interfere with fish habitats and disrupt food chains.

Another concern is the lack of regulatory frameworks for validating and verifying the efficacy of ocean carbon credits. With no established standards in place, it becomes difficult to ensure transparency and accountability in measuring how much carbon has been removed from oceans.

Additionally, some experts warn that relying on carbon removal could divert attention away from more pressing climate solutions, such as reducing greenhouse gas emissions at their source. Without a comprehensive approach to addressing climate change, we risk overlooking other important factors contributing to global warming.

As we continue exploring ways to reduce our impact on the planet’s environment, it’s essential we address these concerns head-on by conducting thorough research and creating clear regulations around monitoring the effectiveness of this promising new technology.

 

A Piece of the Big Picture

The release of Planetary Technologies’ ocean-based carbon removal protocol is a significant milestone in the fight against climate change. The ability to remove carbon dioxide from our oceans not only helps reduce greenhouse gas emissions but also has positive effects on marine life and ecosystems. While there are concerns about potential environmental impacts and costs associated with this technology, it is important to continue exploring innovative solutions like these to address global warming.

Furthermore, individuals can get involved by supporting research efforts or advocating for policies that promote ocean-based carbon capture and storage projects. Ultimately, reducing our carbon footprint requires collective action at all levels – from governments and businesses to individuals.

By working together towards a sustainable future, we can protect our planet’s health while creating new opportunities for economic growth and innovation. Ocean carbon removal is just one piece of the bigger picture, but an important one in our journey towards a greener tomorrow.

 

 

 

 

Source Happy Eco News

Biomimicry in Sustainable Designs

Posted on by dishanth
Biomimicry in Sustainable Designs

Biomimicry in Sustainable Design

The construction industry is very energy intensive. Steel and concrete, both popular materials in construction, are very carbon-intensive in their production. Many of the emissions from concrete production are attributed to burning fossil fuels such as oil and natural gas, which heat up the limestone and clay that becomes Portland cement. There is an opportunity for the construction industry to shape a nature-positive economy from the city to the building design and material and component levels.

The Mobius Project, a greenhouse designed by Iguana Architects, uses biomimicry in sustainable design by drawing inspiration from how ecosystems in nature work. They are committed to revolutionizing food production by turning waste into locally grown, low-carbon nutritious food. The biological waste can also be turned into methane to generate electricity for the greenhouse. In their closed cycle with zero waste, one organism’s waste becomes the next’s input. The idea for the Mobius Project came from observing the oak tree, which has the potential to reuse its output resources, including materials, energy and water.

The Eden Project, designed by exploration architecture, uses biomimicry in sustainable design with a giant greenhouse inspired by the biblical Garden of Eden. It was designed to resemble soap bubbles, carbon molecules, and radiolaria. The idea was that the soap bubbles would be optimally positioned in the sun to allow for complete self-healing. They also took inspiration from dragonfly wings for the best way to assemble steel pieces, allowing for a lightweight structure that required fewer carbon emissions to transport from place to place.

Designers have also looked at lotus leaves to decrease the need for protective finishings, which are usually toxic. The lotus leaf has tiny hairs covered with a waxy coating that allows it to stay dry. Water that hits the leaf will roll off the waxy nonpolar coating. This has inspired a protective coating for external areas that will repel water and dirt, which reduces the need for maintenance. Moreover, reducing the water accumulation in buildings will reduce deterioration mechanisms in infrastructures, such as steel corrosion, sulphate attacks, freezing and thawing.

Limestone-producing bacteria can be used to extend a building’s lifespan. Certain bacteria can produce limestone, filling the gaps and cracks that affect concrete structures over time. This can reduce the need to use new concrete for repairs.

Learning from nature and imputing the way nature works into our designs and in the construction industry can make our built environments more sustainable. There’s so much we can learn from nature; the more we discover, the more we can work toward reducing our impact on the planet.

 

 

 

 

Source Happy Eco News

Jaguar Land Rover: Tackling sustainability in supply chain

Posted on by dishanth
Jaguar Land Rover: Tackling sustainability in supply chain

Jaguar Land Rover has invited its suppliers to align to its sustainability commitments, of reducing greenhouse gas emissions across its operations
Achieving net zero across the entire value chain is becoming more important to global organisations as they are all trying to help in the fight against climate change.

Jaguar Land Rover has explained how its commitments can only be achieved by working closely with suppliers who share the same vision for change. Therefore the company has invited its global Tier 1 supplier network – products, services and logistics – to align with its 2030 goals, while maintaining the same quality.

“Fulfilling our SBTi commitments and achieving carbon net zero emissions across our entire supply chain by 2039 are the driving forces in Jaguar Land Rover’s industrial strategy. We can only meet these ambitious targets together, which is why we’re inviting suppliers to join us on this challenging but exciting journey, strengthening existing relationships to enable all parties to achieve significant, quantifiable goals,” said Barbara Bergmeier, Executive Director of Industrial Operations, Jaguar Land Rover.

 

 

Reducing the global impact of the automotive industry

Earlier this year, Jaguar Land Rover committed to reducing greenhouse gas emissions across its operations by 46% by 2030. In addition, the company will cut average vehicle emissions across its value chains by 54%, including a 60% reduction throughout the use phase of its vehicles.

The goals, which are approved by the Science Based Targets initiative (SBTi), confirm the company’s pathway to a 1.5°C emissions reduction in line with the Paris Agreement.

As explained in the new announcement, the company will ask Tier 1 suppliers to set their decarbonisation pathway, report transparently and demonstrate progress towards their targets. This would involve disclosing their carbon reporting and collaborating with their own supply chain to deliver the same reductions. This requirement has been shared with Jaguar Land Rover’s supply network, totalling more than 5,000 companies around the globe.

Wilhelm Steger, CEO of the ZKW Group, which supplies premium lighting systems to Jaguar Land Rover, said: “Our vision is pioneering, premium lighting and electronic systems for all mobility concepts in the global automotive industry. Together with Jaguar Land Rover, ZKW is taking the journey towards a more sustainable future. We are committed to protecting the environment and reducing environmental impact. As a consequence, we are taking responsibility, we are developing towards the Science Based Target Initiative (SBTi) within our business and converting our production sites to CO2-neutral by the end of 2025.”

 

 

Source Sustainability

 

UK electricity from renewables outpaces gas and coal power

Posted on by dishanth
UK electricity from renewables outpaces gas and coal power

The UK’s renewable electricity outpaced its fossil fuel generation for the first time in 2020 and could remain the largest source of electricity in the future, according to an independent climate thinktank.

The thinktank behind the report, Ember, revealed that renewable energy generated by wind, sunlight, water and wood made up 42% of the UK’s electricity last year compared with 41% generated from gas and coal plants together.

Although renewable energy has overtaken fossil fuels during the summer months before, 2020 was the first time that renewables were the main source of the UK’s electricity over a year.

Renewable energy also outperformed fossil fuels across the EU for the first time, according to the report, following a collapse in the use of coal last year.

Ember said the UK’s growing stable of windfarms was one of the main reasons for the country’s renewable record. Almost a quarter of the UK’s electricity was generated by wind turbines last year, double the share of wind power in 2015 and up from a fifth of the UK’s electricity in 2019.

By contrast, electricity from gas-fired power plants fell to a five-year low of 37% of the UK’s electricity, while coal power plants made up just 2% of the electricity mix.

Charles Moore, the programme leader at Ember, said: “With Boris’s 40GW 2030 offshore wind target, gas generation is set for further rapid declines over the 2020s. It is clear the UK has started its journey towards gas power phase-out in 2035 as recommended by the Climate Change Committee.”

The report found that solar and hydro power generated 4% and 2% of the UK’s electricity respectively last year, which was unchanged compared with the year before.

Bioenergy, which is power generated by burning wood pellets, grew slightly to make up 12% of the UK’s electricity, raising concerns over the use of an energy source “with a high risk of negative climate and environmental impacts”.

Moore said: “We view bioenergy as a much higher risk form of renewable energy, for both climate and environmental outcomes, than the other forms such as wind and solar.”

 

Renewable energy overtook fossil fuels in 2020 as the largest source of UK energy

The trend towards renewable energy power accelerated in 2020 following a sudden drop in demand for energy from the national grid as shops, offices and restaurants closed during the Covid lockdown restrictions, the report said. Renewable energy, the cheapest source of electricity in the UK, was able to claim a larger share of the electricity mix as the electricity system operator left gas plants idle and called on nuclear reactors to lower their output to stop the grid from being overwhelmed with more electricity than the UK required.

The thinktank predicted that renewable electricity will maintain its lead in the UK’s electricity system in the years ahead, even after normal demand levels return, as new wind and solar farms are built across the country.

“The coronavirus has accelerated the trend towards renewable energy but we would have expected renewables to overtake fossil fuels by 2021. It has brought forward the trend by only a year or two,” Moore said. “Renewables will probably remain above fossil fuels this year, but it’s very dependent on various things like nuclear output and the weather. Even if fossil fuels return this year it will be a narrow lead and a short-lived one.”

The UK recorded a string of green energy records in 2020, including the highest recorded output for wind during Storm Bella on Boxing Day, and a new record for solar power in April.

The electricity system operator, which is owned by National Grid, said the larger role for renewables also caused the “carbon intensity” of Great Britain’s power system to fall to its lowest level on record. It fell to 181g of carbon dioxide per kilowatt-hour of electricity last year, compared with an average of 215g in 2019 and 248g in 2018, it said.

 

 

By Jillian Ambrose

Source The Guardian