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:276
in the scientific literature, there is an overwhelming consensus that global surface temperatures have increased in recent decades and that the trend is caused mainly by human-induced emissions of greenhouse gases.