Glogal warming will prove to be more of a great thing than a bad thing, because of the water cycle. More heat equals more rains. It's very simple. Rain forests are that forests that holds the most biomass and biodiversity. As the rain in rain forest suggests, there's a lot of rain in rain forests. While vegetation needs a lot of water, vegetation reject a lot of water also. Because of respiration(6 CO2 + 12 H2O → C6H12O6 + 6 O2 + 6 H2O), plants recirculate water and provide water for more plants. Deforestation stop this recirculation of water, that's why it's a major problem.
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