"We plough the fields and scatter the good seed on the land for it is fed and watered by a big black man with a big watering can!!" Just kidding it is the SUN that heats up the water to make clouds which rain. So the water is being continually recycled and changes form by the process called photosynthesis in plants and animals breakdown the eaten plant life to produce water. Check out sections on LIFE SUPPORT and ENVIRONMENT. In addition it is thought the storms originate in South Pacific Sea. I ask myself what is happening to water off the coast of Japan as they have a damaged nuclear power station leaking radio active water? Ask the scientists what would happen to radio active water if heated up by the Sun? Would someone please check the radio activity level of water in flooded areas.