10 Manmade Events that Changed the World

There can be no doubt: mankind has left its physical mark on the planet. Sometimes we do it by accident, but mostly it's on purpose, however destructive that purpose might be.
Source: NASA

Whether it’s building a 5500 mile wall in to see if it can keep some pesky neighbours out of our vegetable patch (it can’t) or blowing up an island to see if our bomb is big enough to level a city (it can) we are really good at leaving our mark.

1. Louisiana Sinkhole: Lake Peigneur, Louisiana

Source: Shutinc / Wikimedia

Once upon a time, back before 1980, there was a lovely freshwater lake near the Gulf of Mexico by New Iberia, Louisiana.