He was the star of the Davos forum in January. He is the darling of the candidates for the municipal elections in March. The tree. Companies, governments, candidates have (almost) all this watchword: let's plant! Last month, even US President Donald Trump, not really known for his commitment to the environmental cause, promised to join the "1000 billion trees" initiative launched by the organizers of the World Economic Forum in Davos.
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The goal is laudable: absorb the maximum amount of carbon dioxide (CO2), one of the main greenhouse gases responsible for global warming. Forests are indeed a carbon sink because trees capture CO2 during their growth. In its 2018 report, the intergovernmental group of experts on climate change (IPCC) also mentioned a "set of options" aimed at limiting global warming to + 1.5 ° C in 2100, including a very clear increase in forest areas by 2050.
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