human activities (mainly greenhouse-gas emissions) are the dominant cause of the rapid warming since the middle 1900s (ipcc, 2013).
human activities (mainly greenhouse-gas emissions) are the dominant cause of the rapid warming since the middle 1900s (ipcc, 2013).
global warming:59
human activity since the industrial revolution has increased the amount of greenhouse gases in the atmosphere, leading to increased radiative forcing from co2, methane, tropospheric ozone, cfcs, and nitrous oxide.