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Environmental impact - global warming questions

1. The table below lists the current tropospheric concentration and global warming potential for some common greenhouse gases.1 Current tropospheric concentration in parts per billion. 2. Global warming potential (GWP) indicates the warming effect of a greenhouse gas relative to carbon dioxide over a period of 100 years. Source: Blasing, T.J. ad K. Smith 2011. "Recent Greenhouse Gas Concentrations." In Trends: A Compendium...

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