The peak of emissions must be reached at the latest in 2025 to limit warming to 1.5 ° C, underlines the Intergovernmental Panel on Climate Change in a new report.
If the fight against climate change was similar to a timer, the time would now have elapsed. Without an immediate and drastic reduction of greenhouse gas emissions in all sectors, it will be definitely impossible to limit warming to 1.5 ° C relative to the pre-industrial era. Maintaining this objective – the most ambitious of the Paris Agreement adopted in 2015 – involves reaching a peak of emissions at the latest in 2025, before one described in all areas.
The changes to be operated are major and go through a significant reduction in fossil energies, the increase in renewable energies, energy efficiency and electrification, lifestyles changes, a substantial increase in funding and the help of technological innovation. These are the main conclusions of the Intergovernmental Panel on Climate Change (IPCC), published on Monday, April 4, in the third and final component of its sixth evaluation report, whose synthesis is scheduled for September.
This opus loops a catastrophe trilogy detailing the state of scientific knowledge on climate change. The first chapter, published in August 2021, highlighted the acceleration of warming, which worsens everywhere, at unprecedented levels, with risks of tipping points. The second, end of February, described the increasingly gathered, generalized and often irreversible impacts of climate change on the population and ecosystems, as well as the adaptation increasingly expensive and difficult. The third report, written by 278 researchers from 65 countries, from the analysis of 18,000 scientific studies, details the range of solutions to reduce greenhouse gas emissions, making it the most political chapter. .
His “Summary for Policymakers”, a summary of the scientific report of more than 3,000 pages, negotiated for two weeks, line online and wordless, by the representatives of the 195 IPCC member countries, in Collaboration with authors who keep the last word, has been completed with over forty-eight hours late. A record since the creation of the UN instance in 1988.
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Blockages focused on reducing fossil energies, the role of technologies, equity issues and especially finance, according to observers. The developed countries, conducted by the United States, were reluctant to integrate the mention of the important financial flows that developing countries needed to reduce their emissions. Saudi Arabia, on its side, tried to reduce messages on the use of fossil fuels.
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