Simmering tensions around the decision to hold a global climate summit in a petrostate burst into the open on Monday when Sultan Al Jaber, the Emirati oil executive who is leading the conference, launched into an angry public defense of his position on ending fossil fuel use.
Mr. Al Jaber, who runs the state-owned oil company, Adnoc, was under fire for a video that surfaced in which he said there is “no science” behind the idea that fossil fuels must be phased out in order to keep average global temperatures from rising above 1.5 degrees Celsius over preindustrial levels.
That’s the threshold beyond which scientists say humans would struggle to adapt to increasingly severe storms, drought, heat and rising sea levels caused by global warming.
Climate experts convened by the United Nations have said that nations must cut the emissions from fossil fuels by 43 percent by the end of this decade, compared to 2019 levels, if the world has any hope of limiting warming to 1.5 degrees Celsius.
Many diplomats and scientists say that would be impossible without phasing out fossil fuels and want governments to emerge from the climate talks with a pledge to end the use of coal, oil and gas.
“The 1.5-degree limit is only possible if we ultimately stop burning all fossil fuels,” António Guterres, the U.N. secretary general, said on Friday. “Not reduce. Not abate. Phase out. With a clear time frame aligned with 1.5 degrees.”
Mr. Al Jaber made the controversial comments two weeks ago, but they only came to light on Sunday when they were reported by The Guardian.
He was participating in a panel discussion called She Changes Climate. In video of the exchange, Mary Robinson, the former president of Ireland who is now a prominent climate advocate, asked Mr. Al Jaber if he would lead a global effort to phase out fossil fuels.
“There is no science out there, or no scenario out there, that says the phaseout of fossil fuel is what’s going to achieve 1.5,” Mr. Al Jaber replied. He chastised the panel for asking the question, saying he had expected a “sober and mature conversation” not an “alarmist” one.
“Please, help me, show me a road map for a phaseout of fossil fuels that will allow for sustainable socioeconomic development, unless you want to take the world back into caves,” he told the panel.
His remarks set off a firestorm at the climate talks being held in Dubai, known as COP28.
Former Vice President Al Gore, who has called for fossil fuels to be replaced with wind, solar and other renewable energy, assailed Mr. Al Jaber.
“From the moment this absurd masquerade began, it was only a matter of time before his preposterous disguise no longer concealed the reality of the most brazen conflict of interest in the history of climate negotiations,” Mr. Gore said in an email. “Obviously, the world needs to phase out fossil fuels as quickly as possible.”
He said Mr. Al Jaber “has been preparing one of the most aggressive expansions of fossil fuel production, timed to begin as soon as he bangs the final gavel to conclude COP28.”
But on Monday, a defiant Mr. Al Jaber suggested he did not say what he can be heard saying on the video. And he indicated that anyone who claimed otherwise was trying to undermine his leadership of COP28.
In front of a packed and hastily arranged news conference, Mr. Al Jaber appeared to take the criticism personally and described his background as an economist and an engineer. “I respect the science in everything I do,” he said.
“I have said over and over that the phase-down and the phaseout of fossil fuels is inevitable,” Mr. Al Jabber said.
He insisted that he has called many times for a phase out of fossil fuels and said that his efforts to champion climate change had been ignored by the media.
Mr. Al Jaber appeared aggrieved, saying “one statement, taken out of context with misrepresentation and misinterpretation that gets maximum coverage.”
The planet has already warmed about 1.2 degrees since the industrial revolution, driven by the burning of coal, oil and gas.
Jim Skea, the chairman of the U.N.’s Intergovernmental Panel on Climate Change, said on Monday while sitting next to Mr. Al Jaber that fossil fuels would need to be “greatly reduced” by 2050 in order to limit global warming to 1.5 degrees. Coal plants without technology to capture and store emissions would need to be phased out completely, he said.
The fossil fuel industry has responded to suggestions of a phaseout by saying that technology could capture and store carbon emissions, which would allow it to continue to operate. But scientists widely agree that the technologies that the oil industry is depending upon, like carbon capture and storage, cannot be deployed at the scale or pace required to avoid the worst impacts of climate change.