You know what are great? Dams. Not just because they make cool waterfall things and keep the river downstream from ever flooding over, but they also can be harmful to wildlife.
According to a report by the World Wrestling Federation World Wildlife Fund, any of the 11 proposed hydropower dams on the Mekong River in Southeast Asia could end the Mekong giant catfish’s tenure here on Earth. The fish can grow up to 10 feet long and weigh up to 770 lbs. (!) and would be too large to swim across any of the dams, blocking these car-sized monsters from reaching their spawning grounds.
Not only does hydropower do all this, it’s also a clean form of energy. Where exactly is the down side?