Sentences with phrase «emission ozone data»
Not exact matches
In the analysis, Dr. Hansen and his colleagues culled data and scientific papers on topics from rice production, which releases methane, to urban pollution, a source of ozone and sooty particles, to obtain detailed estimates of the rate of change in different greenhouse emissions.
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The emission data on the RCPs were harmonized and downscaled (to a 0.5 × 0.5 grid) for air pollutants, i.e. aerosols and tropospheric ozone precursors.
The harmonization of the well - mixed GHGs (CO2, CH4, N2O, eight HFCs, three PFCs, SF6 and sixteen ozone depleting substances controlled under the Montreal Protocol) was based on historical emission and observed concentration data.
In order to better understand the causes of the Arctic's changing climate, the authors used observational data and nine CMIP5 global climate models to tease apart the effects of anthropogenic greenhouse gas emissions, natural forcings and other anthropogenic forcings (aerosols, ozone and land use changes).
Even worse, the paper's authors concluded «the new data call into question our understanding of observed stratospheric temperature trends and our ability to test simulations of the stratospheric response to emissions of greenhouse gases and ozone - depleting substances.»