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The greenhouse effect on Earth is defined as: "The infrared radiative effect of all infrared absorbing constituents in the atmosphere.Greenhouse gases (GHGs), clouds, and some aerosols absorb terrestrial radiation emitted by the Earth's surface and elsewhere in the atmosphere."
There is a strong scientific consensus that greenhouse effect due to carbon dioxide is a main driver of climate change.Following is an illustrative model meant for a pedagogical purpose, showing the main physical determinants of the effect.
[4]: 95–96 Net feedbacks will stay negative largely because of increased thermal radiation as the planet warms, which is an effect that is several times larger than any other singular feedback. [4]: 96 Accordingly, anthropogenic climate change alone cannot cause a runaway greenhouse effect. [5] [6]
This 1912 article succinctly describes the greenhouse effect, how burning coal creates carbon dioxide to cause global warming and climate change. [ 424 ] Scientists in the 19th century such as Alexander von Humboldt began to foresee the effects of climate change.
Positive climate change feedbacks amplify changes in the climate system, and can lead to destabilizing effects for the climate. [2] An increase in temperature from greenhouse gases leading to increased water vapor (which is itself a greenhouse gas) causing further warming is a positive feedback, but not a runaway effect, on Earth. [13]
Some climate change effects: wildfire caused by heat and dryness, bleached coral caused by ocean acidification and heating, environmental migration caused by desertification, and coastal flooding caused by storms and sea level rise. Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an overall ...
Such measurements furthered understanding of the greenhouse effect that underlies global warming and climate change. The history of the scientific discovery of climate change began in the early 19th century when ice ages and other natural changes in paleoclimate were first suspected and the natural greenhouse effect was first identified.
While water vapour and clouds are the biggest contributors to the greenhouse effect, they primarily change as a function of temperature. Therefore, they are considered to be feedbacks that change climate sensitivity. On the other hand, gases such as CO 2, tropospheric ozone, [21] CFCs and nitrous oxide are added or removed independently from ...
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