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Climate change can also be used more broadly to include changes to the climate that have happened throughout Earth's history. [32] Global warming—used as early as 1975 [33] —became the more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate. [34] Since the 2000s, climate change has ...
More of the Sun's energy is now absorbed in these regions, contributing to amplification of Arctic temperature changes. [90] Arctic amplification is also thawing permafrost, which releases methane and CO 2 into the atmosphere. [91] Climate change can also cause methane releases from wetlands, marine systems, and freshwater systems. [92]
A change in the type, distribution and coverage of vegetation may occur given a change in the climate. Some changes in climate may result in increased precipitation and warmth, resulting in improved plant growth and the subsequent sequestration of airborne CO 2. Though an increase in CO 2 may benefit plants, some factors can diminish this increase.
The human activities causing this warming include fossil fuel combustion, cement production, and land use changes such as deforestation, [3]: 10–11 with a significant supporting role from the other greenhouse gases such as methane and nitrous oxide. [1]: 7 This human role in climate change is considered "unequivocal" and "incontrovertible".
Climate change is driving changes in rainfall patterns across the world, scientists said in a paper published on Friday, which could also be intensifying typhoons and other tropical storms. Taiwan ...
Radiative forcing is defined in the IPCC Sixth Assessment Report as follows: "The change in the net, downward minus upward, radiative flux (expressed in W/m 2) due to a change in an external driver of climate change, such as a change in the concentration of carbon dioxide (CO 2), the concentration of volcanic aerosols or the output of the Sun." [3]: 2245
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 ...
Non-steady-state situations appear after an imposed change in temperature at a boundary of an object. They may also occur with temperature changes inside an object, as a result of a new source or sink of heat suddenly introduced within an object, causing temperatures near the source or sink to change in time.