The scientific consensus expressed in the 2007 Intergovernmental Panel on Climate Change (IPCC) Summary for Policymakers is for the water cycle to continue to intensify throughout the 21st century, though this does not mean that precipitation will increase in all regions.
在2007年政府間氣候變化專門委員會在科學範疇上一致通過一個關於政策製定的總結，而其目的是要在二十一世紀中繼續增強整個水循環，但這不代表會增強全部地區的降水量。