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UN: Global warming rate could be halved by controlling ground-level ozone and methane, black carbon http://apocadocs.com/s.pl?1298555359
The projected rise in global temperatures could be cut in half in coming years if world governments focused on reducing emissions of two harmful pollutants - black carbon and ground-level ozone, including methane - rather than carbon dioxide alone, according to a U.N. study released Wednesday.
The study, "Integrated Assessment of Black Carbon and Tropospheric Ozone," by the U.N. Environment Programme, shows the impact that the two short-lived pollutants have on the environment, compared with carbon dioxide, which can stay in the atmosphere for decades....
The impact from reducing short-lived pollutants such as black carbon and ground-level ozone such as methane is more immediately felt. Carbon dioxide remains in the atmosphere for years, so the effects of reducing the emissions take longer to register.
To reduce black carbon emissions, the study recommends placing a ban on open-field burning of agricultural waste, replacing industrial coke ovens with modern recovery ovens, introducing clean-burning biomass cook stoves for cooking and heating in developing countries and eliminating high-emitting vehicles.
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