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  1. Mar 1, 2022 · The anthropogenic greenhouse effect results from human activity which causes additional emissions of greenhouse gases. The latter prevent more heat radiation from escaping the atmosphere than usual and are thus responsible for a sort of accumulation of heat.

  2. Anthropogenic global warming is a theory explaining today's long-term increase in the average temperature of Earth's atmosphere as an effect of human industry and agriculture.

    • Fluorinated Emission Trends
    • Reducing Fluorinated Gas Emissions
    • References

    Overall, fluorinated gas emissions in the United States have increased by 105% between 1990 and 2022. This increase has been driven by a 349% increase in emissions of hydrofluorocarbons (HFCs) since 1990, as they have been widely used as a substitute for ozone-depleting substances. Emissions of perfluorocarbons (PFCs) and sulfur hexafluoride (SF6) ...

    Because most fluorinated gases have a very long atmospheric lifetime, it will take many years to see a noticeable decline in current concentrations. There are, however, a number of ways to reduce emissions of fluorinated gases, described below.

    1IPCC (2013) Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. [Stocker, T.F., D. Qin, G.K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Ki...

  3. CO 2 is the primary anthropogenic greenhouse gas, accounting for 64% of the human contribution to the greenhouse effect in 2019. 4 Global Warming Potentials (GWPs) indicate the relative effectiveness of GHGs in trapping the Earth’s heat over a certain time horizon.

  4. In the United States, most (about 74%) human-caused (anthropogenic) greenhouse gas (GHG) emissions come from burning fossil fuels—coal, natural gas, and petroleum—for energy use.

  5. May 22, 2023 · Greenhouse gases are gases—like carbon dioxide (CO 2), methane, and nitrous oxide—that keep the Earth warmer than it would be without them. The reason they warm the Earth has to do with the way energy enters and leaves our atmosphere. When energy from the sun first reaches us, it does so mainly as light.

  6. Jul 8, 2024 · Major greenhouse gases include carbon dioxide, methane, nitrous oxide, and various synthetic chemicals. Carbon dioxide is widely reported as the most important anthropogenic greenhouse gas because it currently accounts for the greatest portion of the warming associated with human activities. Carbon dioxide occurs naturally as part of the global ...

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