On March 20, 2023, the IPCC published the assessment report of the sixth assessment cycle[1], its findings are alarmist, the situation of the planet and its habitability is worsening and the movement is accelerating.


Already, the last decade has been the hottest in 125,000 years! Human activities are necessarily responsible for such radical climate change. The rise in global temperatures is far from over[2], global warming will reach 1.5 degrees in 2030 regardless of the changes made by humanity to reduce emissions.


The IPCC specifies that at the current rate, the global rise in temperatures will reach 3.5 degrees by the end of the century. This climate change is already having effects such as less access to water, a drop in agricultural yield or effects on health. To reverse the trend and stay at 1.5 degrees in the long term requires that the peak of CO2 emitted be in 2025, after which the quantity will have to decrease.


Finally, the report mentions the irreversibility of the changes brought about by climate change: extreme temperature differentials, melting ice, more numerous natural disasters with greater severity. The IPCC mentions consequences which could take centuries, even millennia, before they can be reversed. In terms of biodiversity, the consequences will unfortunately be irreversible.

[1] https://climat.be/changements-climatiques/changements-observes/rapports-du-giec/2023-rapport-de-synthese

[2] https://www.vie-publique.fr/en-bref/288687-rechauffement-climatique-un-nouveau-rapport-alarmant-du-giec

A propos de Léandre CAILLAUD