In the 21st century, the average rainfall will increase and likewise its intensity. Many party of Earth will therefore drown in rain and snow, whilst other parts will dry out. What should we expect? How should we deal with these new conditions? How to adapt to it? One answer can be found there where humankind has already gotten used to exceptionally high rainfalls, there where there is never a drop of rainfall, and there where rain and snowfall reach world records. The French Island, La Reunion, in the Indian Ocean offers almost certainly a guarantee for torrential rainfall. When it comes to world records, La Reunion is by far the champion. The big legend amidst the places with the most rain is the city Cherrapunjee in Eastern India. Cherrapunjee is proud to call itself the wettest place on Earth. Here one has to get acclimated to five months of continous rainfall. According to the most recent measurements, the amount of downpour is even increasing. On the other extreme there is the Atacama desert in Chile. It is considered the driest desert on Earth. Allegedly, some places have not even seen rainfall for four thousand years.