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Growing evidence suggests that draining the water and exposing the peat also has made the region a significant source of greenhouse gas emissions, which are warming the global climate and ...
Water vapor is the most important greenhouse gas overall, being responsible for 41–67% of the greenhouse effect, [31] [32] but its global concentrations are not directly affected by human activity. While local water vapor concentrations can be affected by developments such as irrigation , it has little impact on the global scale due to its ...
Global warming is primarily a result of the increase in atmospheric greenhouse-gas concentrations (like CO 2 and methane) via the burning of fossil fuels as well as other human activities such as deforestation, with secondary climate change feedback mechanisms (such as the melting of the polar ice increasing the Earth's absorption of sunlight ...
The effect was more fully quantified by Svante Arrhenius in 1896, who made the first quantitative prediction of global warming due to a hypothetical doubling of atmospheric carbon dioxide. [20] The term greenhouse was first applied to this phenomenon by Nils Gustaf Ekholm in 1901. [13] [14
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] Positive feedback effects are common (e.g. ice–albedo feedback) but runaway effects do not necessarily emerge from their presence.
Countries responsible for two-thirds of global emissions have made commitments to curb their greenhouse gas production. That group includes some of the biggest emitters like China, India and the U.S. China, the world’s biggest carbon producer, has promised that its carbon emissions will peak by 2030.
[11] [14] [15] Also, due to its intentional and other releases of natural gas, the industry directly contributed at least [16] 79 million tons of methane (2.4 BT CO 2-equivalent) that same year; an amount equal to about 14% of all known anthropogenic and natural emissions of the potent warming gas. [15] [17] [18]
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 ...