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IPCC AR6 Working Group III Mitigation of Climate Change

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The 3rd report in the IPCC AR6 assessment provides a global update on climate mitigation (progress and long-term pledges) and examines the source of global emissions. It goes onto assess the methods for reducing greenhouse gases and removing greenhouse gases from the atmosphere.

The report states that overshooting 1.5°C (based on pre-industrial levels) is now ‘almost inevitable’ but the overshoot could be temporary, and temperatures can be returned to the threshold by the end of the century if we significantly reduce emissions this decade.

It was emphasised that technologies such as carbon capture storage are ‘likely’ to be needed to limit and reduce CO2 emissions in the atmosphere and the world ‘must’ reach net zero by 2050.

The main aspects of the report include:

  • Greenhouse Gas emission growth is slowing.
  • Current pledges are insufficient, and emissions must fall 43% by 2030 compared to 2019 levels.
  • Widespread ‘system transformations’ are required across the energy, buildings, transport, land and other sectors to achieve 5°C.
  • Finance falls short in developing countries to achieve ambitious mitigation goals.
  • The economic benefits of climate action will outweigh the costs.

To read the full report, technical summary or summary for policy makers please visit - https://www.ipcc.ch/report/ar6/wg3/.

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