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Also called global warming denial. climate change feedback A natural phenomenon that may increase or decrease the warming that eventually results from a change in radiative forcing. climate change mitigation approaches to limit global warming, primarily by the substitution of fossil fuels with low-carbon sources of energy climate commitment How much future warming is "committed", even if ...
CBDR is based on the relationship between industrialization and climate change. [4] The more industrialized a country is, the more likely that it has contributed to climate change. States came to an agreement that developed countries contributed more to environmental degradation and should have greater responsibility for climate change ...
As of 2021 the remaining carbon budget for a 50-50 chance of staying below 1.5 degrees of warming is 460 bn tonnes of CO 2 or 11 + 1 ⁄ 2 years at 2020 emission rates. [14] Global average greenhouse gas per person per year in the late 2010s was about 7 tonnes [15] – including 0.7 tonnes CO 2 eq food, 1.1 tonnes from the home, and 0.8 tonnes from transport. [16]
A related phenomenon driven by climate change is woody plant encroachment, affecting up to 500 million hectares globally. [218] Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics. [219] The size and speed of global warming is making abrupt changes in ecosystems more likely ...
Despite the fact that food is a big climate problem, very little has been done so far to address it. This year's U.N. climate conference in Dubai will be the first to dedicate a whole day to the ...
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This provides a picture of the varying contributions of different types of economic activity to climate change, and helps in understanding the changes required to mitigate climate change. Greenhouse gas emissions can be divided into those that arise from the combustion of fuels to produce energy, and those generated by other processes.
Uncertainty over feedbacks, particularly cloud cover, [86] is the major reason why different climate models project different magnitudes of warming for a given amount of emissions. [87] As air warms, it can hold more moisture. Water vapour, as a potent greenhouse gas, holds heat in the atmosphere. [82]