Carbon dioxide is a colorless and odorless gas, that exists naturally in Earth’s athmosphere and that keeps solar radiation, without which, this heat would dissipate into space. This enabled life on the planet. The main source of CO2 emissions is the burning of fossil fuels, that, due to human action, has significantly raised on these past decades, increasing CO2 concentrations in about 0,5% each year. As such, carbon dioxide, which is the main gas with greenhouse effect, has made excessive the heat retained on Earth, this lead to the origin of global warming and climatic changes on the planet.

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