How do climatologists express the approval of greenhouse gases and atmospheric pollutants?
Prem Baboo
B.Tech(Chemical Engineering),M.Sc(Ecology & Environments) M.Phil(environment Science),Executive M.B.ARetired from DGM (Production & Process) Dangote Fertilizers Nigeria and Sr. Manager National Fertilizers Ltd.India at The Institution of Engineers (India)
India
Yes, growing rice produces methane, a greenhouse gas more than 30 times as potent as carbon dioxide. Methane is also a potent greenhouse gas, meaning it affects climate change by contributing to increased warming and The reaction of ozone with methane produces carbon dioxide and water vapor. Chlorofluorocarbons (CFCs) have been identified as the main cause of the destruction to the ozone layer, but there are also compounds containing bromine, other halogen compounds and also nitrogen oxides which cause damage.
Greenhouse Gases
Methane
Ozone
Fertilizers
Carbon Dioxide
Philip G Jessop added a reply
If by "approval" you're asking how scientists compare different greenhouse gases for the amount of global warming they cause, then the answer is by global warming potentials. The global warming potential of a gas is defined as the amount of radiative forcing caused by that gas divided by the amount of radiative forcing caused by an equal mass of CO2 gas.
For example, methane has a global warming poetical of 28, meaning that releasing methane into the atmosphere causes 28 times as much global warming as releasing the same mass of CO2.
You can find the potentials for many chemicals in Table 7.SM.6 near the end of this free reference: C. Smith, et al., 2021: The Earth’s Energy Budget, Climate Feedbacks, and Climate Sensitivity Supplementary Material. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai et al. (eds.)]. It's available from https://www.ipcc.ch/.
Climatologists express the concentration of greenhouse gases and atmospheric pollutants in parts per million (ppm) or parts per billion (ppb), representing the number of gas molecules per one million or one billion air molecules, respectively. These units provide standardized measures for assessing and monitoring the impact of these gases on the environment and climate.
Greetings and courtesy
Thank you very much for your complete and comprehensive answer. Thank you Abbas
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