Читать книгу How Can I Stop Climate Change: What is it and how to help - Литагент HarperCollins USD, F. M. L. Thompson - Страница 58

Although water vapour is a greenhouse gas – and the most abundant of them – human activity has only a small direct effect on the amount of it in the atmosphere. The precise role of water vapour and clouds in global warming is unclear, but scientists know that as the atmosphere warms it can hold more water vapour, causing more clouds to form. Clouds in turn can have an insulating effect, trapping warm air. But clouds may also cool things down by reflecting sunlight away from the Earth.