layers of atmosphere from earth surface to space
troposphere, stratosphere, mesosphere, thermosphere, ionosphere
climate feedback
can be positive or negative, is a secondary change that occurs in the climate system due to a primary change
positive feedback
a feedback that becomes stronger as time goes on
ex: more water vapour leads to more heat trap and more evaporation and leading to more water vapour
negative feedback
a feedback that becomes lesser and time goes on
ex: more water vapour leads to more cloud cover which allows less heat in and so less evaporation means less cloud cover
insolation
the amount of heat the Earth receives from the sun