It does this over and over in a continuous cycle. When the Sun shines, it warms water up and turns it into a gas - water vapour. This process is called evaporation. The water vapour rises and ...

Water moves around the world in "atmospheric rivers" as part of the global water cycle, explained the report ... to put "unprecedented stress" on this process, the commission said.

In a recently published paper, NASA scientists use nearly 20 years of observations to show that the global water cycle is shifting in unprecedented ways. The majority of those shifts are driven by ...