'Moderate to strong' La Nina this year: UN

Global temperatures boosted by climate change will still be higher than usual despite the cooling effect of a "moderate to strong" La Nina weather phenomenon, the UN said Thursday.

Earth just had its hottest September on record

Unprecedented heat around the world vaulted September 2020 to the hottest September since 1880, according to scientists at NOAA's National Centers for Environmental Information.

Rainforest at biosphere 2 offers glimpse into future of the Amazon

Tropical forests may be more resilient to predicted temperature increases under global climate change than previously thought, a study published in the journal Nature Plants suggests. The results could help make climate prediction ...

Virus crisis an opportunity to reshape climate reponse: IEA

Only massive investment in clean energy can help overcome the economic crisis caused by the novel coronavirus pandemic while setting the world on a path to meeting its objectives to slow climate change, the International ...

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Climate

Climate encompasses the statistics of temperature, humidity, atmospheric pressure, wind, rainfall, atmospheric particle count and numerous other meteorological elements in a given region over long periods of time. Climate can be contrasted to weather, which is the present condition of these same elements over periods up to two weeks.

The climate of a location is affected by its latitude, terrain, altitude, ice or snow cover, as well as nearby water bodies and their currents. Climates can be classified according to the average and typical ranges of different variables, most commonly temperature and rainfall. The most commonly used classification scheme is the one originally developed by Wladimir Köppen. The Thornthwaite system, in use since 1948, incorporates evapotranspiration in addition to temperature and precipitation information and is used in studying animal species diversity and potential impacts of climate changes. The Bergeron and Spatial Synoptic Classification systems focus on the origin of air masses defining the climate for certain areas.

Paleoclimatology is the study and description of ancient climates. Since direct observations of climate are not available before the 19th century, paleoclimates are inferred from proxy variables that include non-biotic evidence such as sediments found in lake beds and ice cores, and biotic evidence such as tree rings and coral. Climate models are mathematical models of past, present and future climates.

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