If you haven't heard about the major droughts afflicting most of the US this summer, then you may just have your head in the sand (or more likely a water-parched dusty hole). In fact, the media department of the Drought Monitor website ran out of combinations for modifying the words “intensify” and “widespread” when referring to the drought in their headlines.
Indeed, if you have been keeping tabs on the situation, “megadrought” and “a new normal?” sound highly familiar by now. With farmers nervous about a modern-day Dust Bowl taking hold, the question on everyone's mind is, how long will it last?
This visceral threat of water scarcity puts a new report about the true cost of fossil fuels in perspective. “The Hidden Costs of Electricity: Comparing the Hidden Costs of Power Generation Fuels” evaluates, among other parameters, the water demands of fuel sources such as biomass, coal, nuclear, natural gas, solar, and wind.
In short, the nonrenewables like nuclear and coal use far more water to generate electricity than clean energy technologies like solar and wind. Take a look at how much water power plants need to function (mainly for the purpose of cooling):
At least 75 per cent of known fossil fuel reserves must remain in the ground to avoid catastrophic climate change, but not only are fossil fuel...