Fossil fuels

Fuels such as oil, natural gas, and mineral coal – fossilized plant residues – that are buried in the Earth’s crust and reached their present state through chemical reactions over long periods of time. They are produced by the continuous decomposition of organic animal and plant matter through geological eras. Their production is extremely slow – much slower than the current consumption rate – and therefore, not renewable on the human timescale.

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Diffusion in the oceans

Diffusion in the oceans

The process through which the atmosphere and water continuously exchange molecules of carbon dioxide. The diffusion of carbon dioxide into the oceans accounts for almost half of the carbon extracted from the atmosphere. The colder oceans absorb more CO2 than warmer...

ARPA

ARPA

Brazilian Portuguese acronym for Programa Áreas Protegidas da Amazônia (ARPA), which means Amazon Region Protected Areas Program. The program was launched in 2002 by Federal Decree #4,326 and went into operation in 2003. The ARPA program aims to protect significant...