aSunnySwallow SunnySwallow[translate] aChlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and aerosols are very important greenhouse gases. 含氟氯烃(CFCs), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs)和湿剂是非常重要温室气体。[translate]...
Six main gases considered to be contributing to global climate change are carbon dioxide (CO2), methane (CH4) (which is 20 times as potent (强有力的) a greenhouse gas as carbon dioxide) and nitrous oxide (N2O), plus three fluorinated industrial gases: hydrofluorocarbons (HFCs), perfluorocar...
awhich has switched from CFCs (chlorofluorocarbons) to HFCs (hydrofluorocarbons) only to be told HFCs are also a greenhouse gas. Some firms now use DME (dimethyl ether) as an aerosol propellant, which may also 哪些转换从CFCs (含氟氯烃)对(hydrofluorocarbons)只将告诉的HFCs HFCs也是温室气体。
The gases targeted by the protocol are carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, HFCs, and PFCs. The protocol contains some provisions for developing nations, but as the per-capita emissions of greenhouse gases from these nations are much lower than those of industrialized ...
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence ofwater vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect. ...
carbon emissions a company creates in its operations and wider value chain. These scopes cover the six greenhouse gases as covered by the Kyoto Protocol: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulfur hexafluoride (SF6)...
Six main gases considered to be contributing to global climate change are carbon dioxide (CO2), methane (CH4) (which is 20 times as potent (强有力的) a greenhouse gas as carbon dioxide) and nitrous oxide (N2O), plus three fluorinated industrial gases: hydrofluorocarbons (HFCs), perfluorocar...
HFC leakage from appliances is also a problem. They are "super" greenhouse gases with hundreds to thousands of times greater global warming potential than carbon dioxide. In essence, officials tried to fix an old problem by creating a new one. ...
Dr. Matt Rigby, who co-authored the study, is a Reader in Atmospheric Chemistry at the University of Bristol and a member of the Advanced Global Atmospheric Gases Experiment (AGAGE), which measures the concentration of greenhouse gases around the world, said: “When we saw the rep...
Accompanying black carbon on the early-action agenda are methane and hydrofluorocarbons (HFCs). The latter are used predominantly as refrigerants, and can be more than a thousand times more powerful than CO2 as greenhouse gases (see Nature 459, 1040–1041; 2009). The international 'Methane to...