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.”
A Gaza deal is “on the brink”, President Joe Biden has said in his final foreign policy address.
The outgoing US leader said it would include a hostage release deal and a “surge” of aid to Palestinians.
“So many innocent people have been killed, so many communities have been destroyed. Palestinian people deserve
peace,” he said.
“The deal would free the hostages, halt the fighting, provide security to Israel, and allow us to significantly surge humanitarian assistance to the Palestinians who suffered terribly in this war that Hamas started.”
Pic: Reuters
The US president also hailed Washington’s support for Israel during two Iranian attacks in 2024.
“All told, Iran is weaker than it’s been in decades,” he said.
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Mr Biden was delivering his final foreign policy address before he leaves office next week.
Monday’s address will be the penultimate time he speaks to the country before the end of his presidency. He is due to give a farewell address on Wednesday.
US and Arab mediators made significant progress overnight toward brokering a ceasefire in the Israel-Hamas war and the release of scores of hostages held in the Gaza Strip – but a deal has not been reached yet, officials said.
A round of ceasefire talks will be held in Doha on Tuesday to finalise remaining details related to a ceasefire deal in Gaza – including over the release of up to 33 hostages – officials added.
Mr Biden went on to claim America’s adversaries were weaker than when he took office four years ago and that the US was “winning the worldwide competition”.
“Compared to four years ago, America is stronger, our alliances are stronger, our adversaries and competitors are
weaker,” he said.
“We have not gone to war to make these things happen.”
World
IDF admits ‘serious offence’ after using vehicle marked ambulance in raid in which a grandmother was killed
The Israel Defence Forces (IDF) has admitted to a “serious offence” after a Sky News investigation analysed CCTV footage showing the moment an 80-year-old Palestinian grandmother was shot in the West Bank.
Halima Abu Leil was shot during a raid in Nablus. The grandmother died soon after.
During the course of the investigation, we noted that a blue vehicle marked as an ambulance and with a red light on its roof was used by IDF troops to enter the West Bank.
Our investigation stated: “Figures who appear to be Israeli military forces exit the ambulance in the foreground. They are equipped with helmets, backpacks, rifles, and other gear.”
The use of a marked medical vehicle for a security operation could be a contravention of the Geneva Convention and a war crime – as well as Halima’s killing.
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CCTV shows Palestinian grandmother shot in IDF raid
The IDF has subsequently told Sky News: “On December 19, 2024, soldiers from the ‘Duvdevan’ unit took part in an operational mission to detain terrorists in Nablus.
“During the operation, an ambulance-like vehicle was used for operational purposes, without authorisation and without the relevant commanders’ approval.”
It added: “The use of the ambulance-like vehicle during the operation was a serious offence, exceeding authority, and a violation of existing orders and procedures.”
It also said the commander of the ‘Duvdevan’ unit was “reprimanded”.
However, it gave no update into the death of Halima, saying “the circumstances of the incident are being examined”.
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The United Nations Special Rapporteur on occupied Palestinian territory Francesca Albanese watched the CCTV video and told Sky News her death could be a “war crime”.
She said: “When I look at the footage, what emerges prima facie is that there were no precautions taken – within these operations whose legality is debatable – to avoid or spare civilian life.
“No principle of proportionality because there was wildfire directed at the identified target and ultimately no respect for the principle of distinction.
“So this was a murder in cold blood and could be a war crime as an extrajudicial killing.”
According to the United Nations Office Of Human Rights in occupied Palestinian territory, Israeli security forces and settlers have killed at least 813 mostly unarmed Palestinians, including 15 women and 177 children, since 7 October 2023.
Ukraine’s president is offering a prisoner swap with North Korean soldiers it has captured, in exchange for Ukrainians held by Russia.
Volodymyr Zelenskyy has made a direct appeal to leader Kim Jong Un after seizing two North Koreans in Russia’s Kursk region.
“In addition to the first captured soldiers from North Korea, there will undoubtedly be more. It’s only a matter of time before our troops manage to capture others,” he said in a video posted on X.
His video also included an offer of help to officials in California fighting the ongoing fires there.
It is the first time Ukraine has announced the capture of North Korean soldiers since their entry into the nearly three-year-old war last autumn.
Ukrainian and Western assessments say that some 11,000 troops from Russia‘s ally North Korea have been deployed in the Kursk region to support Moscow’s forces, although Russia has neither confirmed nor denied their presence.
Vladimir Putin and Kim Jong Un met in Pyongyang to sign a ‘military pact’ in June 2024. Pic: Kremlin Photo/AP
Mr Zelenskyy has said Russian and North Korean forces had suffered heavy losses.
“Ukraine is ready to hand over Kim Jong Un’s soldiers to him if he can organise their exchange for our warriors who are being held captive in Russia,” Mr Zelenskyy added.
He posted a short video showing the interrogation of two men, presented as North Korean soldiers.
One of them is lying on a bed with bandaged hands, the other is sitting with a bandage on his jaw.
Ukraine said on Saturday it had captured two North Korean soldiers. Pic: Volodymyr Zelenskyy/X
One of the men said through an interpreter that he did not know he was fighting against Ukraine and had been told he was on a training exercise. He said he hid in a shelter during the offensive and was found a couple of days later.
He said that if he was ordered to return to North Korea, he would, but he was ready to stay in Ukraine if given the chance.
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Sky News has not been able to verify the video.
“One of them (soldiers) expressed a desire to stay in Ukraine, the other to return to Korea,” said Mr Zelenskyy, adding that for North Korean soldiers who did not wish to return home, there may be other options available.
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