the composition of mars' atmosphere of carbon dioxide is 95.32%.
the composition of mars' atmosphere of carbon dioxide is 95.32%.
what is the composition of mars' atmosphere of carbon dioxide?
95.32%
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deforestation is a contributor to global warming, and is often cited as one of the major causes of the enhanced greenhouse effect. tropical deforestation is responsible for approximately 20% of world greenhouse gas emissions. according to the intergovernmental panel on climate change deforestation, mainly in tropical areas, could account for up to one-third of total anthropogenic carbon dioxide emissions. but recent calculations suggest that carbon dioxide emissions from deforestation and forest degradation (excluding peatland emissions) contribute about 12% of total anthropogenic carbon dioxide emissions with a range from 6% to 17%. deforestation causes carbon dioxide to linger in the atmosphere. as carbon dioxide accrues, it produces a layer in the atmosphere that traps radiation from the sun. the radiation converts to heat which causes global warming, which is better known as the greenhouse effect. plants remove carbon in the form of carbon dioxide from the atmosphere during the process of photosynthesis, but release some carbon dioxide back into the atmosphere during normal respiration. only when actively growing can a tree or forest remove carbon, by storing it in plant tissues. both the decay and the burning of wood release much of this stored carbon back into the atmosphere. although an accumulation of wood is generally necessary for carbon sequestration, in some forests the network of symbiotic fungi that surround the trees' roots can store a significant amount of carbon, storing it underground even if the tree which supplied it dies and decays, or is harvested and burned. another way carbon can be sequestered by forests is for the wood to be harvested and turned into long-lived products, with new young trees replacing them. deforestation may also cause carbon stores held in soil to be released. forests can be either sinks or sources depending upon environmental circumstances. mature forests alternate between being net sinks and net sources of carbon dioxide (see carbon dioxide sink and carbon cycle).
deforestation