Climate Change Glossary

	Description
Roughness length
Positive feedback	When a change in a variable occurs in a system which exhibits positive feedback, the system responds by changing that variable even more in the same direction
Planetary albedo
North atlantic ossilation
Medieval Warm Period
Little Ice Age
Latent heat flux
IPCC
Hydrosphere	A hydrosphere in physical geography describes the combined mass of water found on, under, and over the surface of a planet.
Hydrological cycle
Holocene Period
Geosphere	is often used to refer to the densest parts of Earth, which consist mostly of rock and regolith. The geosphere consists of the inside of the Earth or other planets or bodies
Downscaling
Cryosphere	The cryosphere is the term which collectively describes the portions of the Earth’s surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps and ice sheets, and frozen ground (which includes permafrost). Thus there is a wide overlap with the hydrosphere
Climate forcings
Carbon sink
Carbon Dioxide	A Chemical that is formed by the fusion of Oxygen and Carbon molecules that help trap heat in the atmosphere and is known as Greehouse Gas
Biosphere	is the global sum of all ecosystems. A closed (apart from solar and cosmic radiation) and self-regulating system From the broadest point of view, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, hydrosphere and atmosphere.
Atmospheric window
Anthropogenic	Climate activity induced by human activity such as the burning of fossil fuels that increase the emissions of Carbon Dioxide
Aleatoric	The incorporation of chance into the process of creation. The word derives from the Latin word alea, the rolling of dice.