September 2023 was not only the hottest September on record, new data has confirmed today, but it was warmer by a margin described by stunned scientists as “extraordinary”, “huge” and “whopping”.
It keeps the world on course for its hottest year ever, expected to be 1.4C warmer than before the industrial era.
The new record is just the latest to be shattered this year, following a record hot June, July and summer overall, and record hot September in the UK.
Scientists are pointing the finger primarily at climate change, and warned of worse to come. But they also put it down to a warm weather pattern called El Nino, and natural changes in the weather.
The Copernicus Climate Change Service (C3S) confirmed today that in September average surface air temperatures globally reached 16.38C.
The figure is 0.93C above the average for September during the last two decades, and a significant 0.5C warmer than the previous warmest ever September, in 2020.
The margin has astonished scientists.
More on Climate Change
Related Topics:
Image: Record heat in September smashed previous records by a “huge” 0.5C margin
“It’s huge,” said Professor Ed Hawkins, climate scientist at Reading University. “We shouldn’t be breaking records by this amount.”
Piers Forster – the interim chair of the government’s Climate Change Committee but speaking in his capacity as climate change professor at Leeds University – said variations between months each year are usually quite small.
Advertisement
“Therefore, breaking the previous September record by a whopping 0.5C is crazy and shows something really bizarre is going on,” he said.
Dr Samantha Burgess, deputy director of C3S, said the “unprecedented temperatures” for September broke records by “an extraordinary amount”.
With two months until the next global climate talks, COP28 in Dubai in December, the “urgency for ambitious climate action has never been more critical”, added Dr Burgess.
The sea was hot too
Today’s findings are based on billions of measurements from satellites, ships, aircraft and weather stations around the world.
They confirmed that temperatures on the ocean surface had also soared in September, reaching the second highest ever, behind only August 2023.
Why was September and this summer so hot globally?
Part of the heat has come from a natural switch in the tropical east Pacific around July from a cool El Nina phase to a warm El Nino one, influencing temperatures around the world.
But while a combination of factors are at play, including natural variability from year to year, scientists believe the main cause is climate change.
Prof Forster said: “We think it’s caused by a combination of factors, principally greenhouse gas emissions being at an all time high.”
Global temperatures have warmed by around 1.1C since the pre-industrial era due to human activity, according to UN’s Intergovernmental Panel on Climate Change.
“What we’re seeing this year is there is a bump on top of that,” said Prof Hawkins, which could be “due to other factors such as El Nino or other weather patterns”.
“But the largest component by far is the fact that we have added so much greenhouse gases in the atmosphere from burning fossil fuels.”
Please use Chrome browser for a more accessible video player
2:40
UK climate deaths since 1990
Prof Hawkins said month after month of record heat was not necessarily a sign the climate crisis was accelerating, but a taste of the future under continued global warming.
Extreme weather events this summer – like fires in the Mediterranean, floods in New York or heatwaves in the UK – will become “more frequent and sadly become normal”, he added.
He said climate change is exacerbating flooding because warmer air can hold more water, meaning rainfall is heavier.
It also makes naturally occurring heatwaves even hotter, and it fuels the hot and dry conditions that allow wildfires to spread rapidly, even if the fires were sparked by something unrelated, he added.
Watch The Climate Show with Tom Heap on Saturday and Sunday at 3pm and 7.30pm on Sky News, on the Sky News website and app, and on YouTube and Twitter.
The show investigates how global warming is changing our landscape and highlights solutions to the crisis.
Donald Trump has criticised Vladimir Putin and suggested a shift in his stance towards the Russian president after a meeting with Volodymyr Zelenskyy before the Pope’s funeral.
The Ukrainian president said the one-on-one talks could prove to be “historic” after pictures showed him sitting opposite Mr Trump, around two feet apart, in the large marble hall inside St Peter’s Basilica.
The US president said he doubted his Russian counterpart’s willingness to end the war after leaving Rome after the funeral of Pope Francis at the Vatican.
In a post on his Truth Social platform, he said “there was no reason” for the Russian president “to be shooting missiles into civilian areas, cities and towns, over the last few days”.
Image: The two leaders held talks before attending the Pope’s funeral
He added: “It makes me think that maybe he doesn’t want to stop the war, he’s just tapping me along, and has to be dealt with differently, through ‘Banking’ or ‘Secondary Sanctions?’ Too many people are dying!!!”
The meeting between the US and Ukrainian leaders was their first face-to-face encounter since a very public row in the Oval Office in February.
Mr Zelenskyy said he had a good meeting with Mr Trump in which they talked about the defence of the Ukrainian people, a full and unconditional ceasefire, and a durable and lasting peace that would prevent the war restarting.
Other images released by the Ukrainian president’s office show Sir Keir Starmer and French President Emmanuel Macron were present for part of the talks, which were described as “positive” by the French presidency.
Mr Zelenskyy‘s spokesman said the meeting lasted for around 15 minutes and he and Mr Trump had agreed to hold further discussions later on Saturday.
Image: The world leaders shared a moment before the service
Image: Donald Trump and Volodymyr Zelenskyy meet in the Basilica
But the US president left Rome for Washington on Air Force One soon after the funeral without any other talks having taken place.
The Ukrainian president’s office said there was no second meeting in Rome because of the tight schedule of both leaders, although he had separate discussions with Mr Starmer and Mr Macron.
The French president said in a post on X “Ukraine is ready for an unconditional ceasefire” and that a so-called coalition of the willing, led by the UK and France, would continue working to achieve a lasting peace.
There was applause from some of the other world leaders in attendance at the Vatican when Mr Zelenskyy walked out of St Peter’s Basilica after stopping in front of the pontiff’s coffin to pay his respects.
Image: Donald Trump and the Ukrainian president met for the first time since their Oval Office row. Pic: Reuters
Sir Tony Brenton, the former British ambassador to Russia, said the event presents diplomatic opportunities, including the “biggest possible meeting” between Mr Trump and the Ukrainian leader.
He told Sky News it could mark “an important step” in starting the peace process between Russia and Ukraine.
Professor Father Francesco Giordano told Sky News the meeting is being called “Pope Francis’s miracle” by members of the clergy, adding: “There’s so many things that happened today – it was just overwhelming.”
The bilateral meeting comes after Mr Trump’s peace negotiator Steve Witkoff held talks with Mr Putin at the Kremlin.
They discussed “the possibility of resuming direct negotiations between Russia and Ukraine”, Kremlin aide Yuri Ushakov said.
Spreaker
This content is provided by Spreaker, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Spreaker cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Spreaker cookies.
To view this content you can use the button below to allow Spreaker cookies for this session only.
On an extraordinary day, remarkable pictures on the margins that capture what may be a turning point for the world.
In a corner of St Peter’s Basilica before the funeral of Pope Francis, the leaders of America and Ukraine sit facing each other in two solitary chairs.
They look like confessor and sinner except we cannot tell which one is which.
In another, the Ukrainian president seems to be remonstrating with the US president. This is their first encounter since their infamous bust-up in the Oval Office.
Image: The two leaders held talks before attending the Pope’s funeral
Other pictures show the moment their French and British counterparts introduced the two men. There is a palpable sense of nervousness in the way the leaders engage.
We do not know what the two presidents said in their brief meeting.
But in the mind of the Ukrainian leader will be the knowledge President Trump has this week said America will reward Russia for its unprovoked brutal invasion of his country, under any peace deal.
Mr Trump has presented Ukraine and Russia with a proposal and ultimatum so one-sided it could have been written in the Kremlin.
Kyiv must surrender the land Russia has taken by force, Crimea forever, the rest at least for now. And it must submit to an act of extortion, a proposed deal that would hand over half its mineral wealth effectively to America.
Image: The world leaders shared a moment before the service
Afterwards, Zelenskyy said it had been a good meeting that could turn out to be historic “if we reach results together”.
They had talked, he said, about the defence of Ukraine, a full and unconditional ceasefire and a durable and lasting peace that will prevent a war restarting.
The Trump peace proposal includes only unspecified security guarantees for Ukraine from countries that do not include the US. It rules out any membership of Ukraine.
Ukraine’s allies are watching closely to see if Mr Trump will apply any pressure on Vladimir Putin, let alone punish him for recent bloody attacks on Ukraine.
Or will he simply walk away if the proposal fails, blaming Ukrainian intransigence, however outrageously, before moving onto a rapprochement with Moscow.
If he does, America’s role as guarantor of international security will be seen effectively as over.
This could be the week we see the world order as we have known it since the end of the Second World War buried, as well as a pope.
Tens of thousands of people have packed St Peter’s Square as the funeral of Pope Francis begins.
Royals, world leaders and cardinals joined scores of worshippers at the Vatican, as mourning of the 266th pontiff transcended wealth and social class.
In keeping with Francis’s life as a breaker of tradition, many of the more elaborate and expensive rituals customary for the burial of popes have been foregone in favour of simpler options.
Around 200,000 people are attending the funeral, with around 50,000 packing out St Peter’s Square.
Please use Chrome browser for a more accessible video player
His body had been lying in state since his death aged 88 on Easter Monday, spending the last few days in St Peter’s Basilica to allow mourners to pay their respects.
The Vatican – where the funeral service is taking place – and Rome – where Francis will be laid to rest – are under heavy security, with a no-fly zone in place overhead.
Image: The coffin of Pope Francis is borne aloft by pallbearers. Pic: Reuters
Image: Members of the clergy gathered to say farewell to their pontiff. Pic: Reuters
Francis’s coffin has been taken out into St Peter’s Square where 220 cardinals and 750 bishops and priests are sitting in rows, waiting to say goodbye to the Bishop of Rome.
A series of readings and prayers are being read before the 50,000 faithful gathered before the basilica, and the coffin will be sprinkled with holy water and incense.
Please use Chrome browser for a more accessible video player
2:27
Singing rings out at the Vatican
Image: Members of the clergy stand in St Peter’s Square. Pic: Reuters
It began with Cardinal Giovanni Battista Re reading the Penitential Act – a way for the faithful to confess their sinfulness.
This was followed by the Liturgy of the Word, a part in Catholic mass where faithful gather to hear and reflect on the word of God.
Cardinal Re then delivered the homily, speaking about Pope Francis’ life and service to God.
Please use Chrome browser for a more accessible video player
0:52
Applause breaks out as Zelenskyy arrives
Image: Cardinal Giovanni Battista Re read the homily
The cardinal praised the pontiff as someone who “touched the minds and hearts of people” who was “attentive to the signs of the times”.
He added: “Despite his frailty and suffering towards the end, Pope Francis chose to follow this path of self-giving until the last day of his earthly life.”
He said Francis “was a pope among the people, with an open heart towards everyone”.
Image: Tens of thousands pack St Peter’s Square for the funeral. Pic: AP
Image: Clergy seated during the funeral. Pic: AP
At the end of the mass, the choir will sing in Latin: “May the angels lead you into paradise; may the martyrs come and welcome you and take you into the holy city, the new and eternal Jerusalem.”
After the service, Pope Francis’s body will be taken in procession through the streets of Rome to his final resting place at his favourite church, the Basilica of Santa Maria Maggiore.
Image: Worshippers outside the Papal Basilica of Santa Maria Maggiore. Pic: Reuters
He will be ushered into the basilica – dedicated to the Virgin Mary – by prisoners and migrants, a last reflection of his priorities as pope.
In a break with tradition, the Popeoutlined in his will his request to be buried “in the ground, without particular ornamentation” but simply with the inscription “Franciscus”.