many lines of evidence, including simple accounting, demonstrate beyond a shadow of a doubt that the increase in atmospheric co2 is due to human fossil fuel burning.
many lines of evidence, including simple accounting, demonstrate beyond a shadow of a doubt that the increase in atmospheric co2 is due to human fossil fuel burning.
scientific consensus on climate change:77
human activities, primarily the burning of fossil fuels (coal, oil, and natural gas), and secondarily the clearing of land, have increased the concentration of carbon dioxide, methane, and other heat-trapping ("greenhouse") gases in the atmosphere...there is international scientific consensus that most of the warming observed over the last 50 years is attributable to human activities.