Climate change

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.

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See also

El Niño

El Niño

An irregularly occurring climatic phenomenon, but that usually occurs every three to five years. It is evident during the Christmas season (El Niño referes to "baby Jesus") on the oceanic surfaces of the eastern part of the tropical Pacific Ocean. The phenomenon...

Forestation

Forestation

It is the conversion, directly induced by the humans, of land that has not been forested – for a period of at least 50 years – into forested land through planting, sowing, and/or human-induced promotion of natural sources of seeds. This definition is used for...