Ocean water evaporates - builds clouds that travel across land and drop their water into our neighborhood ...
Hence our rain water is as clean as the oceans we create or maintain. Rainwater sinks into soil to absorb minerals and life-force from our neighboring nature, to be a healing water that purifies our body, mind and spirit.
Rain water coming from polluted oceans results in dirty intoxicated dwells feeding our tap water. Clouds may travel across continents and oceans from one part of the planet to another part. Hence to maintain a clean nature all across the entire globe is important for all planet.