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:130
the introduction includes this statement: there is strong evidence that the warming of the earth over the last half-century has been caused largely by human activity, such as the burning of fossil fuels and changes in land use, including agriculture and deforestation.