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Many, including Swedish youth activist Greta Thunberg, are skeptical of what they have. We’ve summed up how we feel about our climate pledge in the following six-word summary. Even seasoned environmental activists and academics question whether the United Nations climate treaty, with its tradition of making decisions by consensus among nations rather than by majority vote, can meet the challenge. Nevertheless, the shift from fossil fuels to clean energy technologies has accelerated over the past decade, and many experts say climate diplomacy has played a role.
“Obviously we failed to deliver,” says Rockström. The problem, he says, is one of scale, and getting rid of fossil fuels would mean a massive transformation of the modern global economic system. “This is not an environmental problem, it is a large-scale social problem.”
As it stands, the Climate Action Tracker (CAT), a consortium of scientific and academic institutions, estimates that policies implemented since the Paris Agreement could reduce the projected increase in global average temperature this century by 0.7°C. The CAT estimates that new government pledges announced ahead of COP26 will add another 0.5°C (see ‘Climate multiverse’). And if all 131 countries that have announced or discussed net-zero pledges comply, the projected global temperature rise would remain around 2°C above pre-industrial temperatures. This is still short of his 1.5°C target for Paris, but it is a notable improvement compared to what future scientists predicted a decade ago.
climate multiverse
Climate policies introduced since the signing of the Paris Agreement have lowered the projected temperature in 2100 by 0.7 °C to 2.9 °C. New promises made ahead of COP26, if fully implemented, would improve the situation but fall short of her 1.5-2°C warming target that the planet is aiming for.
Source: Climate Action Tracker
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