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An aircraft engine has successfully been powered with hydrogen fuel in what is thought to be a world first, Rolls-Royce has said, in an attempt to reduce the enormous carbon footprint of flying.

The aerospace manufacturer and partner easyJet, the low-cost airline, say the ground test marks a “major step” towards proving that hydrogen could be used as a zero-carbon aviation fuel.

The trial took place at the Ministry of Defence’s Boscombe Down site in Amesbury, Wiltshire, using a converted Rolls-Royce AE 2100-A regional aircraft engine.

Flying dumps climate-heating gases and other pollutants into the air and is recognised as one of the hardest sectors to decarbonise.

A return flight from London to Barcelona releases around 350kg of carbon dioxide per passenger, while the same journey by train would emit around 18kg.

The two companies hope hydrogen can be used in a range of aircraft from the mid-2030s onwards.

EasyJet chief executive Johan Lundgren said the fuel offers “great possibilities for a range of aircraft, including easyJet-sized aircraft”, and could make a “huge step forward in meeting the challenge of net zero by 2050”.

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Net zero means cutting emissions as much as possible and offsetting or compensating for the rest elsewhere. Scientists agree it is necessary to reach net zero by 2050 to stave off the worst impacts of climate breakdown.

Rolls-Royce chief technology officer Grazia Vittadini said: “We are pushing the boundaries to discover the zero carbon possibilities of hydrogen, which could help reshape the future of flight.”

A switch to hydrogen-powered engines would require a complete redesign of airframes and infrastructure at airports.

The only waste product from using hydrogen as a fuel is water. But green experts warn the hydrogen must be generated sustainably.

While so-called “green” hydrogen is made using renewable power with no emissions, other forms are made from natural gas and emit carbon dioxide in the production process.

The hydrogen in the test engine was produced using tidal and wind energy from the Orkney Islands.

Business secretary Grant Shapps said the UK is “leading the global shift to guilt-free flying”.

But Dr Arnold Gad-Briggs, who sits on the transport panel at the Institution of Engineering and Technology, said we are still “a long way from applying it to a real-life scenario, such as a flying testbed powered by hydrogen engines.”

“But moments like this create the building blocks to realise zero-emissions flying,” he added.

The partnership is planning further work before embarking on a ground test of a Rolls-Royce Pearl 15 engine, which is a model used to power business jets.

Other technologies in the mix to decarbonise flying include electric engines, which might eventually be able to power short flights, and sustainable aviation fuel (SAF).

SAF works in existing engines but is currently only produced in tiny amounts.

Watch the Daily Climate Show at 3.30pm Monday to Friday, and The Climate Show with Tom Heap on Saturday and Sunday at 3.30pm and 7.30pm.

All on Sky News, on the Sky News website and app, on YouTube and Twitter.

The show investigates how global warming is changing our landscape and highlights solutions to the crisis.

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Donald Trump’s tariffs will have consequences for globalisation, the US economy and geopolitics

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Donald Trump's tariffs will have consequences for globalisation, the US economy and geopolitics

For decades, trade and trade policy has been an economic and political backwater – decidedly boring, seemingly uncontroversial. 

Trade was mostly free and getting freer, tariffs were getting lower and lower, and the world was becoming more, not less, globalised.

But alongside those long-term trends, there were some serious consequences.

Trump latest: US president announces sweeping global trade tariffs

Mature, developed economies like the UK and US became ever more reliant on cheap imports from China and, in the process, saw their manufacturing sectors shrink.

Large swathes of the rust belt in the US – and much of the Midlands and North of England – were hollowed out.

And to some extent that’s where the story of Donald Trump’s “Liberation Day” really began – with the notion that free trade and globalisation had a darker side, a side he wants to remedy via tariffs.

More on Donald Trump

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Trump’s tariffs: Ed Conway analysis

He imposed a set of tariffs in his first term, some on China, some on specific materials like steel and aluminium. But the height and the breadth of those tariffs were as nothing compared with the ones we have just heard about.

Not since the 1930s has the US so radically increased the level of tariffs on all nations across the world. Back then, those tariffs exacerbated the Great Depression.

It’s anyone’s guess as to what the consequences of these ones will be. But there will be consequences.

Consequences for the nature of globalisation, consequences for the US economy (tariffs are exceptionally inflationary), consequences for geopolitics.

President Trump with his list of tariffs for various countries. Pic: Reuters
Image:
Imports from the UK will face a 10% tariff, while EU goods will see 20% rates. Pic: Reuters

And to some extent, merely knowing that little bit more about the White House’s plans will deliver a bit of relief to financial markets, which have fretted for months about the imposition of tariffs. That uncertainty recently reached unprecedented levels.

But don’t for a moment assume that this saga is over. Nothing of the sort. In the coming days, we will learn more – more about the nuts and bolts of these policies, more about the retaliatory measures coming from other countries.

We will, possibly, get more of a sense about whether some countries – including the UK – will enjoy reprieves from the tariffs.

To paraphrase Churchill, this isn’t the end of the trade war, or even the beginning of the end – perhaps just the end of the beginning.

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Donald Trump announces sweeping global trade tariffs – including 10% on UK imports

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Donald Trump announces sweeping global trade tariffs - including 10% on UK imports

Donald Trump has announced a 10% trade tariff on all imports from the UK – as he unleashed sweeping tariffs across the globe.

Speaking at a White House event entitled “Make America Wealthy Again”, the president held up a chart detailing the worst offenders – which also showed the new tariffs the US would be imposing.

“This is Liberation Day,” he told a cheering audience of supporters, while hitting out at foreign “cheaters”.

Follow live: Trump tariffs latest

He claimed “trillions” of dollars from the “reciprocal” levies he was imposing on others’ trade barriers would provide relief for the US taxpayer and restore US jobs and factories.

Mr Trump said the US has been “looted, pillaged, raped, plundered” by other nations.

President Donald Trump holds a signed executive order during an event to announce new tariffs in the Rose Garden of the White House, Wednesday, April 2, 2025, in Washington. (AP Photo/Evan Vucci)
Image:
Pic: AP

His first tariff announcement was a 25% duty on all car imports from midnight – 5am on Thursday, UK time.

Mr Trump confirmed the European Union would face a 20% reciprocal tariff on all other imports. China’s rate was set at 34%.

The UK’s rate of 10% was perhaps a shot across the bows over the country’s 20% VAT rate, though the president’s board suggested a 10% tariff imbalance between the two nations.

It was also confirmed that further US tariffs were planned on some individual sectors including semiconductors, pharmaceuticals and critical mineral imports.

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Trump’s tariffs explained

The ramping up of duties promises to be painful for the global economy. Tariffs on steel and aluminium are already in effect.

The UK government signalled there would be no immediate retaliation.

Business and Trade Secretary Jonathan Reynolds said: “We will always act in the best interests of UK businesses and consumers. That’s why, throughout the last few weeks, the government has been fully focused on negotiating an economic deal with the United States that strengthens our existing fair and balanced trading relationship.

“The US is our closest ally, so our approach is to remain calm and committed to doing this deal, which we hope will mitigate the impact of what has been announced today.

“We have a range of tools at our disposal and we will not hesitate to act. We will continue to engage with UK businesses including on their assessment of the impact of any further steps we take.

“Nobody wants a trade war and our intention remains to secure a deal. But nothing is off the table and the government will do everything necessary to defend the UK’s national interest.”

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Who showed up for Trump’s tariff address?

The EU has pledged to retaliate, which is a problem for Northern Ireland.

Should that scenario play out, the region faces the prospect of rising prices because all its imports are tied to EU rules under post-Brexit trading arrangements.

It means US goods shipped to Northern Ireland would be subject to the EU’s reprisals.

The impact of a trade war would be expected to be widely negative, with tit-for-tat tariffs risking job losses, a ramping up of prices and cooling of global trade.

Research for the Institute for Public Policy Research has suggested more than 25,000 direct jobs in the UK car manufacturing industry alone could be at risk from the tariffs on car exports to the US.

The Society of Motor Manufacturers and Traders (SMMT) had said the tariff costs could not be absorbed by manufacturers and may lead to a review of output.

The tariffs now on UK exports pose a big risk to growth and the so-called headroom Chancellor Rachel Reeves was forced to restore to the public finances at the spring statement, risking further spending cuts or tax rises ahead to meet her fiscal rules.

Read more:
What do Trump’s tariffs mean for the UK?
The rewards and risks for US as trade war intensifies

A member of the Office for Budget Responsibility (OBR), David Miles, told MPs on Tuesday that US tariffs at 20% or 25% maintained on the UK for five years would “knock out all the headroom the government currently has”.

But he added that a “very limited tariff war” that the UK stays out of could be “mildly positive”.

He said: “There’s a bit of trade that will get diverted to the UK, and some of the exports from China, for example, that would have gone to the US, they’ll be looking for a home for them in the rest of the world.

“And stuff would be available in the UK a bit cheaper than otherwise would have been. So there is one, not central scenario at all, which is very, very mildly potentially positive to the UK. All the other ones which involve the UK facing tariffs are negative, and they’re negative to very different extents.”

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Business

Donald Trump’s tariffs will have consequences for globalisation, the US economy and geopolitics

Published

on

By

Donald Trump's tariffs will have consequences for globalisation, the US economy and geopolitics

For decades, trade and trade policy has been an economic and political backwater – decidedly boring, seemingly uncontroversial. 

Trade was mostly free and getting freer, tariffs were getting lower and lower, and the world was becoming more, not less, globalised.

But alongside those long-term trends, there were some serious consequences.

Trump latest: US president announces sweeping global trade tariffs

Mature, developed economies like the UK and US became ever more reliant on cheap imports from China and, in the process, saw their manufacturing sectors shrink.

Large swathes of the rust belt in the US – and much of the Midlands and North of England – were hollowed out.

And to some extent that’s where the story of Donald Trump’s “Liberation Day” really began – with the notion that free trade and globalisation had a darker side, a side he wants to remedy via tariffs.

More on Donald Trump

He imposed a set of tariffs in his first term, some on China, some on specific materials like steel and aluminium. But the height and the breadth of those tariffs were as nothing compared with the ones we have just heard about.

Not since the 1930s has the US so radically increased the level of tariffs on all nations across the world. Back then, those tariffs exacerbated the Great Depression.

It’s anyone’s guess as to what the consequences of these ones will be. But there will be consequences.

Consequences for the nature of globalisation, consequences for the US economy (tariffs are exceptionally inflationary), consequences for geopolitics.

President Trump with his list of tariffs for various countries. Pic: Reuters
Image:
Imports from the UK will face a 10% tariff, while EU goods will see 20% rates. Pic: Reuters

And to some extent, merely knowing that little bit more about the White House’s plans will deliver a bit of relief to financial markets, which have fretted for months about the imposition of tariffs. That uncertainty recently reached unprecedented levels.

But don’t for a moment assume that this saga is over. Nothing of the sort. In the coming days, we will learn more – more about the nuts and bolts of these policies, more about the retaliatory measures coming from other countries.

We will, possibly, get more of a sense about whether some countries – including the UK – will enjoy reprieves from the tariffs.

To paraphrase Churchill, this isn’t the end of the trade war, or even the beginning of the end – perhaps just the end of the beginning.

Continue Reading

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