Since the dawn of the new age, the earth has seen many changes. Several of them have to do with advances in technology, medicine, and science. Inasmuch as we would like to believe that our actions have no impact on the earth, we go about our daily lives inventing, creating, using, and discarding. In the process trees are cut down and grasses plowed. But these actions cause erosion (this week's topic) in a big way - bigger than we might expect. A simple straightforward example of an effect are landslides that are easier to form due to the lack of trees holding soil together. Another problem stemming from human activity is global warming in general which causes temperatures to rise globally. These rises in temperature cause heat, condensation, cloud formation, and therefore more thunderstorms. These thunderstorms are becoming more and more severe every year. After hurricanes and typhoons, storm surges form more readily and wreak havoc all over the world. Coastal erosion is caused by beating and bashing waves, but also by the rising sea levels all over the world. More severe storms cause more wind and rain which in turn cause more and more erosion. Perhaps the fact that people have cut down trees from years ago makes the wind blow harder causing more erosion. And global warming causes it to rain more and industrial areas this rain could be akin to acid rain which yet causes more erosion.
Eventually after millions of years wind will cause crevices that get wider each year, coastal erosion that forces us to move buildings and possible entire towns, and even islands that have been swallowed up for good. What is the key to erosion control? No deforestation, no global warming, and only infrastructure that is in tune with the future of nature in a positive way.
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