主要なCop26の誓約は世界を置くことができます 9% 1.5C経路に近い

メタンについて発表された新しいCop26の誓約, 石炭, 輸送と森林伐採は世界を動かす可能性があります 9% 1.5℃まで加熱し続ける経路に近い, によると 調査 by the world’s most respected climate analysis coalition.

Climate Action Tracker says the sectoral commitments announced in Glasgow represent potential cuts of 2.2 gigatonnes of carbon dioxide, which is equivalent to the emissions of Germany, Japan and the UK combined, または 20,000 fully loaded aircraft carriers. This is in addition to measures previously outlined in national climate plans.

しかしながら, this is dependant on governments keeping their climate promises, which almost none have done until now, and it still leaves the world heading towards ever more dangerous levels of heating.

Niklas Höhne of the NewClimate Institute – a partner of Climate Action Tracker – said the figures were low but could improve if more nations signed up.

“It is not surprising that the effect of the Cop26 sectoral initiatives beyond national climate targets is initially small. These initiatives are designed for those that do not sign immediately. The pressure of being put on the spot will help to grow the membership of the initiatives and enhance the effect beyond national climate targets in the long run.”

Many more modest projects have been agreed at Cop26, but the standout four initiatives and their potential impacts are:

これまでのところ 137 global leaders have signed up to a 誓約 “to halt and reverse forest loss and land degradation by 2030”, which was announced at the beginning of Cop26. Many signatories had already agreed to this goal in a similar earlier declaration in New York, but there were some important new signatories including Brazil and China. If this promise is kept, it would be one of the biggest achievements of Cop26.

Climate Action Tracker estimates this initiative could reduce emissions by 1.1 gigatonnes of carbon dioxide equivalent, rising two or threefold if others sign up. しかしながら, there are grave doubts about the credibility of this declaration. Indonesia has already signalled a change of heart and Brazil is weakening rather than strengthening forest protection.

これまでのところ, 108 国家, including the US and the EU, have signed up to this initiative, which aims to reduce human-caused methane emissions by 30% の間に 2020 そして 2030. That will require tighter controls on gas well and pipes, as well as actions on livestock and municipal landfills.

Climate Action Tracker says these commitments are likely to reduce emissions by about 0.8 gigatonnes of carbon dioxide equivalent. That figure will increase as more countries sign up. It does not include China’s plan, made on Thursday, to reduce its methane output.

Forty-six nations have joined this initiative to phase out coal power at varying speeds. Signatories to clause 2 are committed to “transition away from unabated coal generation” in either the 2030s for major economies or 2040s for others. 句 3 is a promise “to stop new construction for any planned coal plants which have not already achieved financial closure”.

Climate Action Tracker says these actions are likely to reduce emissions by about 0.2 gigatonnes of carbon dioxide equivalent, which is far from on track for 1.5C, but they note that if all OECD nations and major coal users can be persuaded to sign up, then the impact could be 10 times higher.

At the time of Climate Action Tracker’s analysis, 22 countries had signed a pledge to reach a 100% share of sales of new cars and vans being zero emission by 2035 for leading markets and 2040 for other regions. 残念ながら, most of the major vehicle-manufacturing nations – Germany, 日本, アメリカ, 中国, and France – are absent.

結果として, the coalition estimates this initiative will reduce emissions by less than 0.1 gigatonnes of carbon dioxide equivalent. If the missing nations later join, this could rise more than sevenfold.

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