No continent seems to have been spared this summer.
Mega fires have ravaged California and the Mediterranean basin.
Torrential rains devastated Germany, Belgium and China.
Temperature records were reached in Canada, Tunisia, Spain and Italy.
Hurricanes of rare intensity hit America.
If rains, fires, heat waves, hurricanes are common at this time of year, it is their intensity and frequency that is unprecedented.
What causes climatic events to become extreme?
Is global warming responsible, in whole or in part, for these events?
"Climate change has an undeniable impact on extreme events"
Françoise Vimeux, climatologist at the Research Institute for Development, reminds us that “the climate system is a set of components (oceans, atmosphere, continents, vegetation, polar caps, etc.) which will be modified by forcings.
There are natural forcings like the sun or volcanism and there are "anthropogenic forcings that are due to human activities like greenhouse gas emissions."
And when these forcings change, our climate changes.
In its latest report, the IPCC announces "unequivocally" that human activities are at the origin of current global warming.
And the latter "has an undeniable impact on extreme events" analyzes Françoise Vimeux.
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