What are the main man-made greenhouse gases?

The strength of the Earth's greenhouse effect is determined by the concentration in the atmosphere of a handful of greenhouse gaseso See all questions and answerso Read about the projectThe strength of the Earth's greenhouse effect is determined by the concentration in the atmosphere of a handful of greenhouse gases. The one that causes the most warming overall is water vapour - though human activity affects its level in the atmosphere indirectly rather than directly.The greenhouse gases that humans do emit directly in significant quantities are: Continue reading...