UN Emissions Gap Report 2021

26 OCTOBER 2021

The Emissions Gap Report 2021 shows that new national climate pledges combined with other mitigation measures put the world on track for a global temperature rise of 2.7°C by the end of the century. That is well above the goals of the Paris climate agreement and would lead to catastrophic changes in the Earth’s climate. To keep global warming below 1.5°C this century, the aspirational goal of the Paris Agreement, the world needs to halve annual greenhouse gas emissions in the next eight years.

If implemented effectively, net-zero emissions pledges could limit warming to 2.2°C, closer to the well-below 2°C goal of the Paris Agreement. However, many national climate plans delay action until after 2030. The reduction of methane emissions from the fossil fuel, waste and agriculture sectors could help close the emissions gap and reduce warming in the short term, the report finds.

Carbon markets could also help slash emissions. But that would only happen if rules are clearly defined and target actual reductions in emissions, while being supported by arrangements to track progress and provide transparency.

https://www.unep.org/resources/emissions-gap-report-2021


From the Executive Summary:

The pathway to net zero counts: the path followed from today until net-zero CO2 emissions are reached determines the total amount of emitted CO2 and thereby the total carbon budget used. Whether a linear, an accelerated, or a delayed path is followed will affect the climate outcome.

Global warming is close to linearly proportional to the total net amount of CO2 that has ever been emitted in the atmosphere as a result of human activities. Therefore, limiting global warming to a specified level requires that the total amount of CO2 emissions ever emitted be kept within a finite carbon budget. New IPCC estimates put the remaining carbon budget to limit warming to 1.5°C relative to pre-industrial levels, with 66 per cent chance, at 400 GtCO2. For 2°C, the estimate is 1,150 GtCO2. Current annual global CO2 emissions are above 40 GtCO2/year, meaning that urgent and deep emissions reductions over the next decade are required to stay within the remaining budgets.

The following G20 countries have committed to reach Net Zero by 2050:
Argentina
Brazil
Canada
EU 27
Japan
Korea
UK
USA

https://wedocs.unep.org/bitstream/handle/20.500.11822/36991/…

So every body get ready to reduce our CO2 emissions to Net Zero by 2050.

Jaak