Carbon dioxide (CO2)

Gas naturally present in the atmosphere, accounting for approximately 0.036% of all of the atmospheric gases, and also emitted from the burning of fossil fuels and biomass, land use changes, and other industrial processes. It is one of the main greenhouse gases and is used as a reference to the other ones.

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Ratification

Ratification

After signing an international treaty, such as the Climate Change Convention or the Kyoto Protocol, a country has to ratify the commitment, often with the approval of its parliament or other legislature. The ratification instrument must be deposited with the UN...

Carbon sinks

Carbon sinks

Any processes, activities or mechanisms, including biomass, and especially forests and oceans, which have the property of removing a greenhouse gas, aerosols or precursors of greenhouse gases from the...

Igarapé

Igarapé

An igarapé is an Amazon watercourse of first or third order, constituted by a long arm of river or channel. It exists in a small number in the Amazon basin, characterized by little depth and running almost inside the forest. Most igarapés have dark waters similar...