The G20 emission projections to 2030 improved since the Paris Agreement, but only slightly.

ABSTRACT: Many years passed since the adoption of the Paris Agreement, which invites countries to determine their own contributions to climate change mitigation efforts. The Agreement does not offer a standard to measure progress but relies on a process of periodic stocktakes to inform ambition-raising cycles. To contribute to this process, we compare 2021 greenhouse gas emission projections up to 2030 against equivalent projections prepared back in 2015. Both sets of projections were prepared using the same bottom-up modelling approach that accounts for adopted policies at the time. We find that 2021 projections for the G20 as a group are almost 15% lower (approximately 6 GtCO₂eq) in 2030 than projected in 2015. Annual emissions grow 1% slower in the coming decade than projected in 2015.

SUBMITTER: Nascimento L 

PROVIDER: S-EPMC9281192 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature