Much is written about the impact of carbon dioxide (CO 2) on climate change to the extent that the perception can arise that it alone is responsible for climate warming In fact the chief greenhouse gas (GHG) is water vapour but as this is relatively fixed and not too obvious a candidate for manipulation it tends to be disregarded Nevertheless its contribution to the greenhouse effectGreenhouse gases from human activities are the most significant driver of observed climate change since the mid th century 1 The indicators in this chapter characterize emissions of the major greenhouse gases resulting from human activities, the concentrations of these gases in the atmosphere, and how emissions and concentrations have changed over time Since 1990 there's been an increase of 43% in the warming effect on the climate of long lived greenhouse gases China coal surge threatens Paris climate targets Musicians 'have to be proactive' on
Greenhouse Gases A Student S Guide To Global Climate Change Us Epa