Indicators of Global Climate Change 2022: Annual update of large-scale indicators of the state of the climate system and the human iinfluence

Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under the United Nations Framework Convention on Climate Change (UNFCCC), including the first global stocktake under the Paris Agreement that will conclude at COP28 in December 2023. Evidence-based decision-making needs to be informed by up-to-date and timely information on key indicators of the state of the climate system and of the human influence on the global climate system. However, successive IPCC reports are published at intervals of 5–10 years, creating potential for an information gap between report cycles. We follow methods as close as possible to those used in the IPCC Sixth Assessment Report (AR6) Working Group One (WGI) report. We compile monitoring datasets to produce estimates for key climate indicators related to forcing of the climate system: emissions of greenhouse gases and short-lived climate forcers, greenhouse gas concentrations, radiative forcing, surface temperature changes, the Earth’s energy imbalance, warming attributed to human activities, the remaining carbon budget, and estimates of global temperature extremes. The purpose of this effort, grounded in an open data, open science approach, is to make annually updated reliable global climate indicators available in the public domain.

FORSTER P.M.;  SMITH Chris;  WALSH Tristam;  LAMB William;  LAMBOLL Robin;  HAUSER Mathias;  RIBES Aurelien;  ROSEN Debbie;  GILLETT Nathan;  PALMER Matthew D.;  ROGELJ Joeri;  VON SCHUCKMANN Karina;  SENEVIRATNE Sonia I.;  TREWIN Blair;  ZHANG Zuebin;  ALLEN Myles;  ANDREW Robby;  BIRT Arlene;  BORGER Alex;  BOYER Tim;  BROERSMA Yiddu;  CHENG Lijing;  DENTENER Franciscus;  FRIEDLINGSTEIN P;  GUTIERREZ Jose Manuel;  GUTSCHOW Johannes;  HALL Bradley;  ISHII Masayoshi;  JENKINS Stuart;  LAN Xin;  LEE June-Yi;  MORICE Colin;  KADOW Christopher;  KENNEDY John;  KILLICK Rachel;  MINX Jan;  NAIK Vaishali;  PETERS Glen;  PIRANI Anna;  PONGRATZ Julia;  SCHLEUSSNER Carl-Friedrich;  SZOPA S.;  THORNE Peter N.;  ROHDE Robert;  CORRADI Maisa;  SCHUMACHER Dominik;  VOSE Russel;  ZICKFIELD Kirsten;  MASSON-DELMOTTE V;  ZHAO Panmao; 

2023-09-29

COPERNICUS GESELLSCHAFT MBH

JRC133655

1866-3508 (online),   

https://doi.org/10.5194/essd-15-2295-2023,    https://publications.jrc.ec.europa.eu/repository/handle/JRC133655,   

10.5194/essd-15-2295-2023 (online),