Document from the year 2013 in the subject Environmental Sciences, language: English, abstract: Global warming is now universally accepted as being the greatest environmental threat to mankind in the current century. The impacts are staggering. Antarctic ice is thinning at increasingly rapid rates, with correspondingly massive influxes of fresh water into the world's oceans. All these changes are due mostly to human activities, particularly in raising the levels of CO2, a major greenhouse gas (GHG). Atmospheric concentrations of CO2 have risen 35% since the Industrial Revolution. This...