The totality of the atmosphere, hydrosphere, biosphere, and geosphere and their interactions.
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Emissions produced as a result of human action. For example, large amounts of carbon dioxide are being released into the atmosphere by activities such as the burning of fossil fuels, agriculture, cement making, and so on.
Changes that are directly or indirectly attributed to human activity and alter the composition of the world's atmosphere and that is added to that caused by the natural climatic variability observed over comparable periods.
The Brazilian Climate Observatory (Observatório do Clima, OC) is a Brazilian network of articulation on global climate change established on March 23, 2002. In addition to discussions with experts on climate change, the Observatory promotes the articulation of...