Extreme global warming could eventually wipe out humans, first-ever supercomputer climate models warn
Extreme global warming will likely wipe all mammals – including humans – off the face of the Earth in 250 million years, according to a new scientific study.
Temperatures could spiral to 70C (158F) and transform the planet into a “hostile environment devoid of food and water”, the research warns.
The planet would heat up to such an extent that many mammals would be unable to survive – and the Earth’s continents would merge to form one hot, dry, uninhabitable supercontinent.
The apocalyptic projections are from the first-ever supercomputer climate models.
They suggest the sun would become brighter, with tectonic movements unleashing huge amounts of carbon dioxide (CO2) into the air through volcanic eruptions.
The Earth would become so hot that only 8% to 16% of the projected supercontinent would be habitable.
Mammals, including humans, are better adapted to living in the cold, and are less able to deal with extreme heat.
A 3D illustration of solar flares on the sun’s surface. File pic
‘Humans would expire’
The study’s lead author, Dr Alexander Farnsworth of the University of Bristol, said: “The newly emerged supercontinent would effectively create a triple whammy, comprising the continentality effect, hotter sun and more CO2 in the atmosphere, of increasing heat for much of the planet.
“The result is a mostly hostile environment devoid of food and water sources for mammals.
“Widespread temperatures of between 40C to 50C, and even greater daily extremes, compounded by high levels of humidity would ultimately seal our fate.
“Humans – along with many other species – would expire due to their inability to shed this heat through sweat, cooling their bodies.”
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Heat deaths double in England
The authors of the research believe CO2 levels could rise from around 400 parts per million (ppm) today to more than 600 ppm by the time of the formation of the supercontinent – named Pangea Ultima.
This assumes, however, that humans stop burning fossil fuels – “otherwise we will see those numbers much, much sooner”, warned Professor Benjamin Mills, who calculated the future CO2 projections for the study.
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‘It is crucial to reach net zero’
The research, by an international team of scientists, has been published in the journal, Nature Geoscience.
Co-author Dr Eunice Lo, of the University of Bristol, said: “It is vitally important not to lose sight of our current climate crisis, which is a result of human emissions of greenhouse gases.
“While we are predicting an uninhabitable planet in 250 million years, today we are already experiencing extreme heat that is detrimental to human health.
“This is why it is crucial to reach net zero emissions as soon as possible.”
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‘Distant future appears very bleak’
The research team simulated temperature, wind, rain and humidity trends for Pangea Ultima and used models of tectonic plate movement, ocean chemistry and biology to estimate future CO2 levels.
Dr Farnsworth added: “The outlook in the distant future appears very bleak.
“Carbon dioxide levels could be double current levels.
“With the sun also anticipated to emit about 2.5% more radiation and the supercontinent being located primarily in the hot, humid tropics, much of the planet could be facing temperatures of between 40C to 70C.
“This work also highlights that a world within the so-called habitable zone of a solar system may not be the most hospitable for humans depending on whether the continents are dispersed, as we have today, or in one large supercontinent.”
World
UK joins NATO operation to bolster Europe’s eastern flank after Russian drone incursions into Poland
NATO is to bolster Europe’s eastern flank, including the use of UK military resources, after Russia’s “reckless and unacceptable” violation of Polish airspace.
NATO Secretary-General Mark Rutte announced operation ‘Eastern Sentry’ on Friday, involving the deployment of equipment on the border with Belarus, Russia and Ukraine to deter potential Russian aggression.
Poland shot down Russian drones which flew over the country on Wednesday, something the military alliance has portrayed as an attempt by Moscow to test NATO’s military response.
It underlines long-held concerns about the potential expansion of Russia’s three-year war in Ukraine.
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Russia said its drones went astray because they were jammed, but European leaders believe the incursions were a deliberate provocation by Russia.
“It’s reckless and unacceptable. We can’t have Russian drones entering allied airspace,” Mr Rutte told a news conference.
Mark Rutte described Russian drones entering Polish airspace as ‘reckless’. Pic: Reuters
He added that allies, including the UK, France, Germany and Denmark, have so far committed to the mission with others set to join.
In a statement, the UK’s Ministry of Defence said: “The UK is fully committed to playing our part in NATO’s Eastern Sentry following the reckless and dangerous airspace violations by Russia”. It added that the details of the UK’s contribution would be announced soon.
Yvette Cooper visited Ukraine on Friday, her first visit to the country since becoming foreign secretary after a cabinet shake-up by Sir Keir Starmer.
Ms Cooper described her trip, which included a meeting with the country’s president, Volodymyr Zelenskyy, as a demonstration of solidarity with Ukraine.
“The UK will not stand idly by as Putin continues his barbaric invasion of Ukraine,” Ms Cooper said, noting what she said was the Russian president’s “complete disregard for sovereignty” by sending drones into NATO airspace.
Yvette Cooper met Volodymyr Zelenskyy in Kyiv on Friday. Pic: Valentyn Ogirenko/Reuters
Pic: Valentyn Ogirenko/Reuters
Prince Harry also made a surprise visit to Kyiv on Friday, where he met with wounded service members.
NATO already has substantial forces in eastern Europe, including thousands of troops, but the alliance did not explain how many additional forces would be involved in the new operation.
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Prince Harry’s surprise visit to Ukraine
Speaking at the alliance’s Brussels headquarters, US General Alexus Grynkewich told reporters the additional resources will enable the alliance to “plug gaps in the line” and concentrate forces wherever they’re needed while improving communications across NATO’s entire eastern flank.
NATO detailed a modest number of additional military assets – including two F-16 fighter jets and a frigate from Denmark, three Rafale fighter jets from France and four Eurofighter jets from Germany.
The announcement also coincided with a joint military exercise involving thousands of Russian and Belarusian troops, which began on Friday.
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Meanwhile, new measures were announced by the UK against Russia on Friday.
They included bans on 70 vessels the UK says are part of Russia’s “shadow fleet” that transports Russian oil in defiance of sanctions.
Some 30 individuals and companies – including Chinese and Turkey-based firms – were also sanctioned for their part in supplying Russia with electronics, chemicals, explosives and other weapons components.
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Donald Tusk, the Polish prime minister, dismissed Donald Trump’s suggestion that the drone incursion into Poland may have been “a mistake”.
“We would also wish that the drone attack on Poland was a mistake,” Mr Tusk wrote on X. “But it wasn’t. And we know it.”
US-led efforts to steer Moscow and Kyiv toward a peace settlement have so far failed to progress.
Kremlin spokesperson Dmitry Peskov said talks to end the war were currently on “pause” even though channels of communication remain open.
Thousands of troops are taking part in a joint military exercise between Russia and Belarus, as tensions with the EU run high following a Russian drone incursion into Polish airspace earlier this week.
The Zapad joint military exercise which began on Friday will involve drills in both Russia and Belarus as well as in the Baltic and Barents seas, the Russian defence ministry said.
Belarusian defence officials initially said about 13,000 troops would participate in the drill, but in May, its defence ministry said that would be cut nearly in half.
It comes just two days after Poland, with support from its NATO allies, shot down Russian drones over its airspace.
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Poland’s Prime Minister Donald Tusk on Friday morning hit back at a suggestion by US President Donald Trump on Thursday that the incursion may have been a “mistake”.
He said in a post on X: “We would also wish that the drone attack on Poland was a mistake. But it wasn’t. And we know it.”
Russia said its forces had been attacking Ukraine at the time of the incursions and that it had not intended to hit any targets in Poland.
Friday also saw Foreign Secretary Yvette Cooper travelling to Ukraine’s capital of Kyiv on the same day the UK announced fresh sanctions against Moscow.
Prince Harry was also in Kyiv for a surprise visit to help with the recovery of military personnel seriously injured in the three-year war with Russia.
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Prince Harry arrives in Kyiv
Ms Cooper, who was appointed foreign secretary last week, posted about her visit on X saying: “The UK’s support for Ukraine is steadfast. I am pleased to be in Kyiv on my first visit as Foreign Secretary.”
The UK’s new sanctions include bans on 70 vessels that Britain says are part of Russia’s “shadow fleet” that transports Russian oil in defiance of sanctions already in place.
Yvette Cooper with Volodymyr Zelenskyy in Kyiv. Pic: Valentyn Ogirenko/PA
Some 30 individuals and companies – including Chinese and Turkey-based firms – have also been sanctioned for their part in supplying Russia with electronics, chemicals, explosives and other weapons components.
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Meanwhile on the frontline, Ukrainian drones struck Russia’s oil-loading Primorsk port overnight, an SBU official said.
The attack caused fires and suspended oil-loading operations, the official added.
Russian defence systems also intercepted and destroyed 221 Ukrainian drones overnight.
Prince Harry has made a surprise visit to the Ukrainian capital of Kyiv, a spokesperson for the royal has said.
Harry, who served 10 years in the British Army, visited the city at the invitation of the Ukrainian government.
The Duke of Sussex travelled to the capital to help with the recovery of military personnel seriously injured in the three-year war with Russia.
Pic: Railway of Ukraine Ukrzaliznytsia/AP
Foreign Secretary Yvette Cooper will also be travelling to Kyiv on Friday in what will be her first foreign trip since being appointed to the job last week.
Her visit coincides with the UK launching a new package of Russia-related sanctions targeting ships carrying Russian oil as well as companies and individuals supplying electronics, chemicals and explosives used to make Russian weapons.
It comes as Russia and Belarus began a major joint military exercise on on NATO’s doorstep on Friday, just two days after Poland, with support from its NATO allies, shot down suspected Russian drones over its airspace.
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Drones shot down in Poland
The Zapad-2025 exercise – a show of force by Russia and its close ally – will involve drills in both countries and in the Baltic and Barents seas, the Russian defence ministry said.
Meanwhile on the frontline, Russian defence systems intercepted and destroyed 221 Ukrainian drones overnight,
including nine over the Moscow region, the ministry said on Friday.
The duke told the Guardian while on an overnight train to Kyiv: “We cannot stop the war but what we can do is do everything we can to help the recovery process.
“We can continue to humanise the people involved in this war and what they are going through.
“We have to keep it in the forefront of people’s minds. I hope this trip will help to bring it home to people because it’s easy to become desensitised to what has been going on.”
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Harry, who served two tours in Afghanistan, previously travelled to Ukraine in April, when he visited war victims as part of his work with wounded veterans.
The prince visited the Superhumans Center, an orthopaedic clinic in Lviv that treats and rehabilitates wounded military personnel and civilians.
Earlier this week, Harry said the King is “great” after he reunited with him at Clarence House for a private tea.
It was their first meeting in 19 months and lasted just 54 minutes.
The last time the father and son saw each other was in February 2024 when the prince flew to the UK after the monarch announced his cancer diagnosis.
Harry and his wife Meghan Markle have lived in California since they quit roles as senior working royals in March 2020.
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