EPA’s proposed modification to CAA Section 202 (a) recently stated that the effect of atmospheric greenhouse gases endangers humans through global warming. Global warming increases air and ocean temperatures, melts snow and ice over widespread geographic areas and increases average sea levels, causing various problems directly to human health, and indirectly to institutions and infrastructure.
From US sources, carbon dioxide from mobile sources is the second greatest contributor, after electricity generation, to atmospheric greenhouse gases. Alternative fuels that emit significantly less carbon dioxide, or none at all, alleviate the impacts of global warming by putting less carbon in the atmosphere. More information can be found at How Alternative Fuels Help Combat Global Warming.
