Italy : Enel Green Power and Sapio sign an agreement to supply green hydrogen produced by NextHy in Sicily

Pyroelectric Energy Harvesting captures low-grade heat via thin-film materials, converting temperature fluctuations into power for waste heat recovery in electronics, vehicles, and industrial machinery, offering a thermoelectric alternative for microelectronics and exascale systems.

Key Points

Thin-film pyroelectric harvesting turns temperature changes into electricity, enabling low-grade waste heat recovery.

✅ Converts low-grade heat fluctuations into usable power

✅ Thin-film design suits microelectronics and edge devices

✅ Alternative to thermoelectrics for waste heat recovery

The electronic device you are reading this on is currently producing a modest to significant amount of waste heat that emerging thermoelectric materials could help recover in principle. In fact, nearly 70% of the energy produced annually in the US is ultimately wasted as heat, much of it less than 100 degrees Celsius. The main culprits are computers and other electronic devices, vehicles, as well as industrial machinery. Heat waste is also a big problem for supercomputers, because as more circuitry is condensed into smaller and smaller areas, the hotter those microcircuits get.

It’s also been estimated that a single next-generation exascale supercomputer could feasibly use up to 10% of the energy output of just one coal-fired power station, and that nearly all of that energy would ultimately be wasted as heat.

What if it were possible to convert that heat energy into a useable energy source, and even to generate electricity at night from temperature differences as well?

#google#

It’s not a new idea, of course. In fact the possibility of thermoelectric energy generation, where thermal energy is turned into electricity was recognised as early as 1821, around the same time that Michael Faraday developed the electric motor.

Unfortunately, when the heat source is ‘low grade’, aka less than 100 degrees Celsius, a number of limitations arise, and related approaches for nighttime renewable generation face similar challenges as well. For it to work well, you need materials that have quite high electrical conductivity, but low thermal conductivity. It’s not an easy combination to come by.

Taking a different approach, researchers at the University of California, Berkeley, have developed thin-film that uses pyroelectric harvesting to capture heat-waste and convert heat to electricity in prototype demonstrations. The findings were published today in Nature Materials.

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Nature-friendly offshore wind energy supports climate neutrality by reducing greenhouse gases while safeguarding marine biodiversity through EU marine spatial planning, ecosystem-based approaches, cross-border coordination, and zero-use zones for resilient seas.

Key Points

An approach to offshore wind that cuts emissions while respecting ecological limits and protecting marine biodiversity.

✅ Aligns buildout with ecological limits and marine spatial plans

✅ Minimizes noise, collision, and habitat loss for sensitive species

✅ Coordinates EU-wide monitoring, data, and cross-border siting

Offshore wind power can help reduce greenhouse gas emissions, but it poses risks for the seas. Germany will hold the EU Council Presidency and the North Sea Energy Cooperation Presidency in 2020. What must be done to contain the climate and species crises, as it were?

Offshore wind power is an important regenerative energy source with a $1 trillion market outlook in the coming decades. However, the construction, operation and maintenance of the systems put marine mammals, birds and fish at considerable risk. Photo: Siemens AG

In order to achieve the German and EU climate and energy goals by 2030 and climate neutrality by 2050, we need a nature-friendly energy transition. At present, the European energy system is largely based on fossil fuels. This is changing, as renewables surge across Europe for end consumers and industry and the large-scale electrification of the energy consumption sectors. Offshore wind energy is an element for future power generation.

A nature-friendly energy transition is only possible if energy consumption is reduced and energy efficiency is maximized in all applications and sectors. Emissions reductions through offshore wind energy In 2019, Europe had an installed offshore wind energy capacity of around 22 gigawatts from 5,047 grid-connected wind turbines in twelve countries. In Germany, the nominal output of the offshore wind turbines feeding into the German power grid was around 7.5 gigawatts, with clean energy accounting for about 50% of electricity nationwide. The wind blows much stronger and more steadily at sea than on land.

The power capacity of the turbines has also almost doubled in the last five years, which has led to a higher energy yield. Offshore wind energy is a building block for replacing fossil fuels, and markets like the U.S. offshore sector are about to soar as well. Wind turbines at sea provide electricity almost every hour of the year and have operating hours that are as high as conventional power plants. They can contribute to significant reductions in CO2 emissions and to mitigate the climate crisis.

It must be ensured that offshore wind turbines and parks as well as the grid infrastructure make a positive contribution to climate protection through their expansion and that the overall condition of marine ecosystems improves. The expansion of offshore wind energy is necessary from the point of view of climate science and must take place within the framework of the ecological load limits and under nature conservation aspects.

Seas and marine ecosystems suffer from years of overfishing, pollution and industrial use. The conservation status of sea birds, marine mammals and fish stocks is poor. Ecosystem services and productivity of the oceans are decreasing as a result of massive species extinction and unfavorable habitats. Changes in sea temperature, oxygen levels and acidification of the oceans reduce their resilience to the climate crisis.

The latest reports from the European Environment Agency show in black and white that the good environmental status and other goals of the Marine Strategy Framework Directive are not being achieved. The primary goal must therefore be to meet the obligations of the Marine Strategy Framework Directive and the EU nature conservation directives.

With the expansion of offshore wind energy, the pressure on the already polluted marine ecosystems is increasing. Offshore wind turbines also harbor risks for marine ecosystems, especially if they are built in unfavorable locations. Studies show harmful effects on marine mammals, birds, fish and the ocean floor. In Europe, where wind power investments hit $29.4 billion last year, a regulatory framework must be created for the expansion of offshore wind energy within the ecological limits and taking into account zero-use zones. The European Union urgently needs to take coherent measures for healthy and resilient seas.

New strategy of the European Commission The EU Commission plans to present a strategy for the expansion of renewable energies at sea on November 18, 2020.

The strategy will address the opportunities and challenges associated with the expansion of renewable energies at sea, such as effects on energy networks and markets, management of the maritime space, the technological transfer of research projects, regional and international cooperation and industrial policy dimensions, as well as political headwinds in some countries that can affect project pipelines. NABU welcomes the strategy, but worries about insufficient consideration of marine protection, ecological load-bearing capacity and the marine spatial planning that regulates interests in the use of the sea. All EU member states have to submit their marine spatial planning plans by March 2021.

Conclusions of the European Council Shortly before the end of 2020, the European Council plans to adopt conclusions for cooperation among European member states on the subject of offshore wind energy and other renewable energy sources at sea. It is important that the planning and development of offshore wind energy is coordinated across national borders, including alignment with the UK's offshore wind growth, also to protect marine ecosystems.

However, the ecosystem approach must not be left out. It must be ensured that the Council conclusions focus on the implementation of EU marine and nature conservation directives for the expansion of offshore wind energy within the load limits. EU-wide monitoring systems can help protect marine species and ecosystems. Germany holds the EU Council Presidency and the North Sea Energy Cooperation Presidency for 2020 and can make a decisive contribution.

NABU demands on offshore wind energy in Europe Expansion targets for offshore wind energy across Europe should be based on the ecological load limits of the seas. Development of concrete concepts for the ecological upgrading of areas in marine spatial planning and operationalization of the ecosystem-based approach.

For the nature-friendly expansion of offshore – Wind energy systems must take into account avoidance distances from seabirds to turbines, habitat loss, collision risks and cumulative effects. Implementation / obligation to sensitivity analyzes – they allow targeted conclusions about the best possible locations for offshore wind energy without conflicts with marine protection.

Targeted keeping of areas free for species and their Habitats of anthropogenic use – this increases planning security and can lower investment thresholds for EU funding programs. Ensuring regional cooperation between the European member states for nature Protection and with the involvement of nature conservation authorities – after all, the marine ecosystem does not stop at borders.

Adjustment of priorities: If offshore wind energy is prioritized over other renewable energy sources across Europe, other industrial forms of use of the seas must be given a lower priority.

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Volvo Electric Heavy-Duty Trucks lead Europe’s e-mobility shift, meeting strict emissions rules with battery-electric drivelines, hydrogen fuel cell roadmaps, fast charging infrastructure, and autonomous freight solutions for regional haulage and urban construction.

Key Points

A battery-electric heavy truck range for haulage and urban construction, targeting zero emissions and compliance.

✅ Up to 44t GCW, ranges up to 300 km per charge

✅ Battery-electric now; hydrogen fuel cells targeted next

✅ Production from 2022; suited to haulage and construction

According to the report published by Allied Market Research, the global electric truck market generated $422.5M (approx €355.1M) in 2019 and is estimated to reach $1.89B (approx €1.58B) by 2027, registering a CAGR of 25.8% from 2020 to 2027, reflecting broader expectations that EV adoption within a decade will accelerate worldwide. 

The surge in government initiatives to promote e-mobility and stringent emission norms on vehicles using fossil fuels (petrol and diesel) is driving the growth of the global electric truck market, while shifts in the EV aftermarket are expected to reinforce this trend. 

Launching a range of electric trucks in 2021
Volvo is among the several companies, including early moves like Tesla's truck reveal efforts, trying to cash in on this popular and lucrative market. Recently, the company announced that it’s going to launch a complete heavy-duty range of trucks with electric drivelines starting in Europe in 2021. Next year, hauliers in Europe will be able to order all-electric versions of Volvo’s heavy-duty trucks. The sales will begin next year and volume production will start in 2022. 

“To reduce the impact of transport on the climate, we need to make a swift transition from fossil fuels to alternatives such as electricity. But the conditions for making this shift, and consequently the pace of the transition, vary dramatically across different hauliers and markets, depending on many variables such as financial incentives, access to charging infrastructure and type of transport operations,” explains Roger Alm, President Volvo Trucks.

Used for regional transport and urban construction operations
According to the company, it is now testing electric heavy-duty models – Volvo FH, FM, and FMX trucks, which will be used for regional transport and urban construction operations in Europe, and in the U.S., 70 Volvo VNR Electric trucks are being deployed in California initiatives as well. These Volvo trucks will offer a complete heavy-duty range with electric drivelines. These trucks will have a gross combination weight of up to 44 tonnes.

“Our chassis is designed to be independent of the driveline used. Our customers can choose to buy several Volvo trucks of the same model, with the only difference being that some are electric and others are powered by gas or diesel. As regards product characteristics, such as the driver’s environment, reliability, and safety, all our vehicles meet the same high standards. Drivers should feel familiar with their vehicles and be able to operate them safely and efficiently regardless of the fuel used,” says Alm.

Fossil free by 2040
Depending on the battery configuration the range could be up to 300 km, claims the company. Back in 2019, Volvo started manufacturing the Volvo FL Electric and FE Electric for city distribution and refuse operations, primarily in Europe, while in the van segment, Ford's all-electric Transit targets similar urban use cases. Volvo Trucks aims to start selling electric trucks powered by hydrogen fuel cells in the second half of this decade. Volvo Trucks’ objective is for its entire product range to be fossil-free by 2040.

Back in 2019, Swedish autonomous and electric freight mobility leader provider Einride’s Pod became the world’s first autonomous, all-electric truck to operate a commercial flow for DB Schenker with a permit on the public road. Last month, the company launched its next-generation Pod in the hopes to have it on the road starting from 2021, while major fleet commitments such as UPS's Tesla Semi pre-orders signal broader demand.

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Canada Net-Zero demands renewable energy deployment, leveraging hydropower to integrate wind, solar, and storage, scaling electrification, cutting oil and gas emissions, aligning policy, carbon pricing, and investment to deliver a clean grid by 2050.

Key Points

A national goal to cut emissions 40-45% by 2030 and reach economy-wide net-zero by 2050 through clean electrification.

✅ Hydropower balances intermittent wind and solar.

✅ Policy, carbon pricing, and investment accelerate deployment.

✅ Clean energy jobs surge as oil and gas decline.

As the UN climate talks draw near, Canada has enormous work left to do to reach its goals of reducing greenhouse gas emissions. Collectively, Canadians have to cut overall greenhouse-gas emissions by 40 to 45 per cent below 2005 levels by 2030 and achieve net-zero by 2050 across the economy.

And whereas countries like the U.K. have dramatically slashed their emissions levels, Canada's one of the few nations where emissions keep skyrocketing, and where fossil fuel extraction keeps increasing every year despite our climate targets.

Changes in national emissions and fossil fuel extraction since 1950, for G7 nations plus Norway and Australia
Graphic by Barry Saxifrage in Sep.15 article,Canada's climate solution? Keep increasing fossil fuels extraction.
Given its track record, and the IEA's finding that Canada will need more electricity to hit net-zero, how will Canada achieve its goal of getting to net-zero by 2050?

As Trudeau seeks to cement his political legacy, these are the MPs he’s considering for cabinet
By Andrew Perez | Opinion | October 25th 2021
In the upcoming online Conversations event on Thursday, 11 a.m. PT/2 p.m. ET, host and Canada's National Observer deputy managing editor David McKie will discuss how cleaning up Canada's electricity and renewable energy can put the country on track to hitting its targets with Clean Energy Canada executive director Merran Smith, Canadian Institute for Climate Choices senior economist Dale Beugin, and WaterPower Canada CEO Anne-Raphaëlle Audouin.

Getting to net-zero grid through renewable electricity
“If we wanted to be powered by 100 per cent renewable electricity, including proposals for a fully renewable electricity grid by 2030, Canada is one of the countries where this is actually possible,” said Audouin.

She says for that to happen, it would take a slate of clean energy providers working together to fill the gaps, rather than competing for market dominance.

“You couldn't power Canada just with wind and solar, even with batteries. That being said, renewables happen to work very well together ” she said. “Hydropower already makes up more than 90 per cent of Canada’s renewable generation and 60 per cent of the country’s total electricity needs are currently met thanks to this flexible, dispatchable, abundant source of baseload renewable electricity. It isn’t a stretch of the imagination to envision hydropower and wind and solar working increasingly together to clean up our grid. In fact, hydropower already backs up and allows intermittent renewable energies like wind and solar onto the grid.”

She noted that while hydropower alone won't be the solution, its long history and indisputable suite of attributes — hydroelectricity has been in Canada since the 1890s — will make it a key part of the clean energy transition required to replace coal, natural gas and oil, which still make up around 20 per cent of Canada's power sources.

Canada's vast access to water, wind, biomass, solar, geothermal, and ocean energy, and a federal government that has committed to climate goals, makes us well-positioned to lead the way to a net-zero future and eventually the electrification of our economy. So, what's holding the country back?

The new reality for renewables
According to Clean Energy Canada, it's possible to grow the clean energy sector, but only if businesses invest massively in renewables and governments give guidance and oversight informed by the implications of decarbonizing Canada's electricity grid research.

A recent modelling study from Clean Energy Canada and Navius Research exploring the energy picture here in Canada over the next decade shows our clean energy sector is expected to grow by about 50 per cent by 2030 to around 640,000 people. Already, the clean energy industry provides 430,500 jobs — more than the entire real estate sector — and that growth is expected to accelerate as our dependence on oil and gas decreases. In fact, clean energy jobs in Alberta are predicted to jump 164 per cent over the next decade.

Currently, provinces with the most hydropower generation are also the ones with the lowest electricity rates, reflecting that electricity has been a nationwide climate success in Canada. Wind and solar are now on par, or even more competitive, than natural gas, and that could have big implications for other major sectors of the economy. Grocery giant Loblaws (which owns brands including President's Choice, Joe Fresh, and Asian grocery chain T&T) deployed its fleet of fully electric delivery trucks in recent years, and Hydro-Québec just signed a $20-billion agreement to help power and decarbonize the state of New York over the next 25 years.

In The New Reality, Smith writes that many carbon-intensive industries, such as the mining sector, could also potentially benefit from the increased demand for certain natural resources — like lithium and nickel — as the world switches to electric vehicles and clean power.

“Oil and gas may have dominated Canada’s energy past, but it’s Canada’s clean energy sector that will define its new reality,” Smith emphasized.

Despite its vast potential to be one of the world's clean energy leaders, Canada has a long way to getting on the path to net zero. Even though the country is home to some of the world's leading cleantech companies, such as B.C.-based clean hydrogen fuel cell providers Ballard Power and Loop Energy and Nova Scotia-based carbon utilization company CarbonCure, the country continues to expand fossil fuel extraction to the point that emissions are projected to jump to around 1,500 MtCO2 worth by 2030.

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Bioo Soil-Generated Electricity turns biological batteries and photosynthesis into renewable energy, powering IoT sensors for smart farming and lighting, using microbe-powered soil electrochemistry to cut battery waste, reduce costs, and scale sustainable agritech infrastructure.

Key Points

Bioo Soil-Generated Electricity powers IoT sensors and lighting using soil microbes, delivering clean renewable energy.

✅ Microbe-driven soil batteries replace disposable chemical cells

✅ Powers IoT agritech sensors for moisture, pH, and temperature

✅ Cuts maintenance and costs while enabling sustainable farming

SCENES shines a spotlight on youth around the world that are breaking down barriers and creating change. The character-driven short films will inspire and amaze, as these young change-makers tell their remarkable stories.

Pablo Vidarte is a born inventor. At the age of eight, he was programming video games. By 16, he was challenging NASA and competing with the Spanish army to enhance the efficiency of external combustion engines. "I wanted to perfect a system that NASA did in 2002 oriented to powering cars. I was able to increase that efficiency by 60 per cent, which was pretty cool," Pablo explained. Aged 18, he created his first company specialising in artificial intelligence. A year later, he founded Bioo, a revolutionary startup that generates electricity from plants' photosynthesis.

"Imagine, being in the middle of a park or a street and being able to touch a plant and turn on the lights of that specific area," Pablo told Scenes. "Imagine storing the memories of humanity itself in nature. Imagine storing voice messages in a library that is an open field where you can go and touch the plants and communicate and interact with them. That's what we do at Bioo," he added.

The creation of Bioo, however, was not a walk in the park. Pablo relied on nanotechnology engineers and biologists volunteering their time to turn his idea of biological batteries, inspired by biological design, into a reality. It took a year for a prototype to be created and an investor to come on board. Today, Bioo is turning plants into biological switches, generating renewable energy from nature, and transforming the environment.

"We realised that we were basically killing the planet, and then we invented things like solar panels and solutions like peer-to-peer energy that we're able to prevent things from getting worse, but the next step is to be able to reverse the whole equation to revive that planet that we're starting to lose," the 25-year-old explained.

Batteries creating electricity from soil
Bioo has designed biological batteries that generate electricity from the energy released when organic soil decomposes. Like traditional batteries, they have an anode and a cathode, but instead of using materials like lithium to power them, organic matter is used as fuel. When microorganisms break down the organic soil, electrons are released. These electrons are then transported from the anode to the cathode, and a current of electricity is created. The batteries come in the shape of a rectangular box and can be dug into any fertile soil. They produce up to 200Wh a year per square metre, and just as some tidal projects use underwater kites to harvest energy, these systems tap natural processes.

Bioo's batteries are limited to low-power applications, but they have grown in popularity and are set to transform the agriculture industry.

Cost savings for farmers
Farmers can monitor their crops using a large network of sensors. The sensors allow them to analyse growing conditions, such as soil moisture, PH levels and air temperature. Almost 90 per cent of the power used to run the sensors come from chemical batteries, which deplete, underscoring the renewable energy storage problem that new solutions target.

"The huge issue is that chemical batteries need to be replaced every single year. But the problem is that you literally need an army of people replacing batteries and recalibrating them," Pablo explains. "What we do, it's literally a solution that is hidden, and that's nourishing from the soil itself and has the same cost as using chemical batteries. So the investment is basically returned in the first year," Pablo added.

Bioo has partnered with Bayer, a leading agricultural producer, to trial their soil-powered sensors on 50 million hectares of agricultural land. If successful, the corporation could save €1.5 billion each year. Making it a game-changer for farmers around the world.

A BioTech World
In addition to agriculture, Bioo's batteries are now being installed in shopping centres, offices and hospitals to generate clean power for lighting, while other companies are using ocean and river power to diversify clean generation portfolios.

Pablo's goal is to create a more environmentally efficient world, so shares his technology with international tech companies as green hydrogen projects scale globally. "I wanted to do something that could really mean a change for our world. Our ambition right now is to create a biotech world, a world that is totally interconnected with nature," he said.

As Bioo continues to develop its technology, Pablo believes that soil-generated electricity will become a leader in the global energy market, aligning with progress toward cheap, abundant electricity becoming a reality worldwide.

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Faroe Islands Tidal Kites harness predictable ocean energy with underwater turbines by Minesto, flying figure-eight paths in fjords to amplify tidal power and deliver renewable electricity to SEV's grid near Vestmanna at megawatt scale.

Key Points

Subsea turbines that fly figure-eight paths to harvest tidal currents, delivering reliable renewable power to the grid.

✅ Figure-eight control amplifies speed vs. ambient current

✅ Predictable baseload complementing wind and hydro

✅ 1.2 MW Dragon-class units planned for Faroese fjords

Known as "sea dragons" or "tidal kites", they look like aircraft, but these are in fact high-tech tidal turbines, part of broader ocean and river power efforts generating electricity from the power of the ocean.

The two kites - with a five-metre (16ft) wingspan - move underwater in a figure-of-eight pattern, absorbing energy from the running tide. They are tethered to the fjord seabed by 40-metre metal cables.

Their movement is generated by the lift exerted by the water flow - just as a plane flies by the force of air flowing over its wings.

Other forms of tidal power use technology similar to terrestrial wind turbines, and emerging kite-based wind power shows the concept's versatility, but the kites are something different.

The moving "flight path" allows the kite to sweep a larger area at a speed several times greater than that of the underwater current. This, in turn, enables the machines to amplify the amount of energy generated by the water alone.

An on-board computer steers the kite into the prevailing current, then idles it at slack tide, maintaining a constant depth in the water column. If there were several kites working at once, the machines would be spaced far enough apart to avoid collisions.

The electricity is sent via the tethering cables to others on the seabed, and then to an onshore control station near the coastal town of Vestmanna.

The technology has been developed by Swedish engineering firm Minesto, founded back in 2007 as a spin-off from the country's plane manufacturer, Saab.

The two kites in the Faroe Islands have been contributing energy to Faroe's electricity company SEV, and the islands' national grid, on an experimental basis over the past year.

Each kite can produce enough electricity to power approximately 50 to 70 homes.

But according to Minesto chief executive, Martin Edlund, larger-scale beasts will enter the fjord in 2022.

"The new kites will have a 12-metre wingspan, and can each generate 1.2 megawatts of power [a megawatt is 1,000 kilowatts]," he says. "We believe an array of these Dragon-class kites will produce enough electricity to power half of the households in the Faroes."

The 17 inhabited Faroe islands are an autonomous territory of Denmark. Located halfway between Shetland and Iceland, in a region where U.K. wind lessons resonate, they are home to just over 50,000 people.

Known for their high winds, persistent rainfall and rough seas, the islands have never been an easy place to live. Fishing is the primary industry, accounting for more than 90% of all exports.

The hope for the underwater kites is that they will help the Faroe Islands achieve its target of net-zero emission energy generation by 2030, with advances in wave energy complementing tidal resources along the way.

While hydro-electric power currently contributes around 40% of the islands' energy needs, wind power contributes around 12% and fossil fuels - in the form of diesel imported by sea - still account for almost half.

Mr Edlund says that the kites will be a particularly useful back-up when the weather is calm. "We had an unusual summer in 2021 in Faroes, with about two months with virtually no wind," he says.

"In an island location there is no possibility of bringing in power connections from another country, and tidal energy for remote communities can help, when supplies run low. The tidal motion is almost perpetual, and we see it as a crucial addition to the net zero goals of the next decade."

Minesto has also been testing its kites in Northern Ireland and Wales, where offshore wind in the UK is powering rapid growth, and it plans to install a farm off the coast of Anglesey, plus projects in Taiwan and Florida.

The Faroe Islands' drive towards more environmental sustainability extends to its wider business community, with surging offshore wind investment providing global momentum. The locals have formed a new umbrella organisation - Burðardygt Vinnulív (Faroese Business Sustainability Initiative).

It currently has 12 high-profile members - key players in local business sectors such as hotels, energy, salmon farming, banking and shipping.

The initiative's chief executive - Ana Holden-Peters - believes the strong tradition of working collaboratively in the islands has spurred on the process. "These businesses have committed to sustainability goals which will be independently assessed," she says.

"Our members are asking how they can make a positive contribution to the national effort. When people here take on a new idea, the small scale of our society means it can progress very rapidly."

One of the islands' main salmon exporters - Hiddenfjord - is also doing its bit, by ceasing the air freighting of its fresh fish. Thought to be a global first for the Atlantic salmon industry, it is now exporting solely via sea cargo instead.

According to the firm's managing director Atli Gregersen this will reduce its transportation CO2 emissions by more than 90%. However it is a bold move commercially as it means that its salmon now takes much longer to get to key markets.

For example, using air freight, it could get its salmon to New York City within two days, but it now takes more than a week by sea.

What has made this possible is better chilling technology that keeps the fresh fish constantly very cold, but without the damaging impact of deep freezing it. So the fish is kept at -3C, rather than the -18C or below of typical commercial frozen food transportation.

"It's taken years to perfect a system that maintains premium quality salmon transported for sea freight rather than plane," says Mr Gregersen. "And that includes stress-free harvesting, as well as an unbroken cold-chain that is closely monitored for longer shelf life.

"We hope, having shown it can be done, that other producers will follow our lead - and accept the idea that salmon were never meant to fly."

Back in the Faroe Island's fjords, a firm called Ocean Rainforest is farming seaweed.

The crop is already used for human food, added to cosmetics, and vitamin supplements, but the firm's managing director Olavur Gregersen is especially keen on the potential of fermented seaweed being used as an additive to cattle feed.

He points to research which appears to show that if cows are given seaweed to eat it reduces the amount of methane gas that they exhale.

"A single cow will burp between 200 and 500 litres of methane every day, as it digests," says Mr Gregersen. "For a dairy cow that's three tonnes per animal per year.

"But we have scientific evidence to show that the antioxidants and tannins in seaweed can significantly reduce the development of methane in the animal's stomach. A seaweed farm covering just 10% of the largest planned North Sea wind farm could reduce the methane emissions from Danish dairy cattle by 50%."

The technology that Ocean Rainforest uses to farm its four different species of seaweed is relatively simple. Tiny algal seedlings are affixed to a rope which dangles in the water, and they grow rapidly. The line is lifted using a winch and the seaweed strands simply cut off with a knife. The line goes back into the water, and the seaweed starts growing again.

Currently, Ocean Rainforest is harvesting around 200 tonnes of seaweed per annum in the Faroe Islands, but plans to scale this up to 8,000 tonnes by 2025. Production may also be expanded to other areas in Europe and North America.

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