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  1. publication
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United in Science 2022: a multi-organization high-level compilation of the latest climate science information


Documents and publications
Author(s)
Lauren Stuart
Jürg Luterbacher
Laura Paterson
et al.
Source
World Meteorological Organization
United Nations Office for Disaster Risk Reduction
United Nations Environment Programme
Met Office
Global Carbon Project
Intergovernmental Panel on Climate Change
Cover
Publication Year
2022
Number of pages
40 p.

United in Science provides an overview of the most recent science related to climate change, impacts and responses from the World Meteorological Organization (WMO) and partner organizations. At a time when urgent action to address climate change is needed, the report provides unified scientific information to inform decision-makers and highlights some of the physical and socioeconomic impacts of the current and projected climate.

Key messages:

  • Atmospheric greenhouse gas concentrations continue to rise and fossil fuel emissions are now above pre-pandemic levels after a temporary drop due to lockdowns associated with the COVID-19 pandemic in 2020 and 2021
  • Recent years saw record high temperatures and ocean heat. Looking forward, there is a 48% chance that, during at least one year in the next five years, annual mean temperature will temporarily be 1.5 °C higher than in 1850-1900
  • Mitigation pledges are insufficient to achieve the Paris Agreement. Enhanced action is needed to prevent continued warming that is increasing the likelihood of irreversible changes in the climate system, known as tipping points
  • Billions of people around the world are exposed to climate change impacts. Cities – responsible for up to 70% of human-caused emissions – will face increasing socioeconomic impacts and the world’s most vulnerable populations will suffer most, as seen in recent extreme weather events
  • Adaptation is crucial to lower the risks to climate impacts. Early warning systems can save lives, reduce losses and damages, contribute to disaster risk reduction, and support climate change adaptation.
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Related information
Related links
United in Science 2022: We are heading in the wrong direction
United In Science 2021: A multi-organization high-level compilation of the latest climate science information
United in Science 2020: A multi-organization high-level compilation of the latest climate science information
United in science 2019: High-level synthesis report of latest climate science information convened by the Science Advisory Group of the UN Climate Action Summit 2019
United in Science report 2020: Climate change has not stopped for COVID19
Keywords
Themes
Climate Change
Science and Technology

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