Failure to end use of fossil fuels will be a "death sentence" to millions worldwide, Swedish activist Greta Thunberg warned on Tuesday, urging politicians to take more ambitious action.
"It will be impossible for us to stick to the 1.5-degree limit without a rapid, equitable, fossil fuel phase-out," Thunberg told a press conference.
She was referring to the 2015 Paris Agreement, at which world leaders pledged to cut greenhouse gas emissions enough to prevent the Earth's annual temperature rising by more than 1.5 to 2.0 degrees Celsius, and thus halt runaway global warming.
"If we don't, it will be a death sentence to countless of people," she said on the sidelines of UN-led climate talks in Bonn.
"It is already a death sentence to countless of people living on the frontlines of the climate crisis."
Scientists and climate activists are pleading for a more rapid expansion of renewables, and a phase out of oil, coal and gas, given the significant proportion of climate-warming greenhouse gas emissions produced by these energy sources.
They want world leaders to agree to phase out fossil fuels at the UN climate negotiations in Dubai (COP28) in late 2023, after failing at their summit in Glasgow in 2021 and again in Sharm-El-Sheikh in 2022.
But major oil and gas exporters are keen to shift the focus further downstream, arguing the world can reduce carbon emissions without ditching the fossil fuels that generate them.
Activists disagree and are equally alarmed at the choice of an oil giant boss to preside over the COP28 climate summit in the United Arab Emirates from November 30 to December 12.
Kenyan climate campaigner Eric Njuguna told the Bonn press conference the appointment of Sultan al-Jaber, head of the Abu Dhabi National Oil Company, to lead the Dubai climate negotiations was akin to allowing "a mosquito (to) lead the fight against malaria".
Sultan Al-Jaber last week acknowledged that a reduction in the use of fossil fuels was "inevitable".
But he has defended a COP28 roadmap that -- while it includes a "global goal to triple renewable energy, double energy efficiency and double clean hydrogen, all by 2030" -- does not include any explicit pledge to end the use of fossil fuels.
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