Last updated March 11, 2024

[TEMPLATE] - Event


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Greenhouse Gas Emissions
Global Warming
Sea Surface Temperature Increase
Land Surface Temperature Increase
Sea Ice Decline
Large Scale Global Circulation Change
Arctic Amplification
Intense Cyclone, Hurricane, Typhoon Frequency Increase
Atmospheric River Change
[TEMPLATE] - Event


What is a drought?

Drought is about water shortage - the result of complex physical interactions between the land and atmosphere. Droughts can develop quickly - flash droughts are short periods of warm surface temperature characterized by low and rapidly decreasing soil moisture - and they can take shape over much longer periods, as in the case of 'megadroughts', with extreme aridity lasting for decades.

Drought is sometimes defined by the weather or climate conditions that drive below average water supply, as in the case of 'hot droughts'

Driven by high temperatures that increase the evaporation of surface moisture into the air, or 'meteorological drought', when dry weather patterns lead to below average precipitation. Drought is also defined by the systems impacted by reduced water supply. 

Climate science at a glance

Climate change exacerbates drought conditions in the western US through a combination of hot temperatures and, in some areas, a lack of precipitation.

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