Global average temperature projected to remain constant after reaching zero CO2 emissions according to 4C report

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The carbon budget is a powerful concept developed in the last decade to assess how much additional carbon dioxide (CO2) humans can emit before a temperature target will be reached with a given probability. It provides critical knowledge to policymakers in order to prepare appropriate mitigation plans.

Better understanding the relationship between the temperature increase and cumulative CO2 emissions is crucial in determining how the global mean temperature will change after emissions reach zero.

4C researchers release new datasets

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As part of 4C, a European project researching climate-carbon interactions in the current century, four new datasets related with carbon dioxide (CO2) have been prepared and are now available to download. These datasets provide important information and data for climate research. They cover the following topics:

4C infographic how emissions affect atmospheric concentrations and lead to temperature rise

4C animated infographic
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In the 4C project we work to better understand how emissions affect atmospheric concentrations and lead to temperature rise. We'll inform the Global Stocktake and help policy makers and governments take the appropriate measures to keep global warming below the Paris Agreement’s goal of 2ºC. 

Learn more by watching our animated infographic:

Global Carbon Budget record decrease in global CO2 emissions in 2020

COVID-19 restriction measures caused an unprecedented drop of 2.4 billion tonnes of CO2 in 2020
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Global fossil CO2 emissions are expected to decline approximately 2.4 billion tonnes of CO2 (GtCO2) in 2020, a record drop caused by COVID-19 confinement measures in place. It means that this year fossil CO2 emissions are predicted to be 34 GtCO2, 7% lower than in 2019. These are the main results of the 15th edition of the Global Carbon Budget, which has been released on 11 December by the Global Carbon Project. 

Virtual Emergent Constraints and Tipping Points Workshop 23 26 November 2020

Emergent Constraints and Tipping Points Workshop
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These collaborative workshops bring together Climate Scientists, Mathematicians and Ecologists to answer key questions around the relationships between the variability and sensitivity of the Earth System and its subcomponents.

The first workshop will discuss proposed emergent constraints on future projections, many of which are based-on assumed relationships between sensitivity and variability.