Evaporative Cooling

The process of evaporation happens all the time. Our bodies, for example, perspire in hot weather. Through evaporation the sweat dries and drops our body temperature. Whenever dry air passes over water, some of the water will be absorbed by the air. That’s why evaporative cooling naturally occurs near waterfalls, at rivers, lakes and oceans. The hotter and drier the air, the more water that can be absorbed. This happens because the temperature and the┬ávapor┬ápressure of the water and the air attempt to equalize.

eco cooling

Earth has been getting warmer over at least the past several decades, primarily as a result of the emissions of carbon dioxide from the burning of coal, oil, and gas, as well as the clearing of forests. New research concludes that evaporated water helps cool the earth as a whole, not just the local area of evaporation.

“We do not inherit the earth from our ancestors, we borrow it from our children.”

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