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" ... Absolutely no energy options are immune from environmental challenges. No, it’s certainly not just “dirty” coal, oil and natural gas, that are being challenged…or those “hazardous” nuclear plants. Wind turbines slaughter birds and bats; solar power disrupts fragile desert ecosystems ; hydroelectric dams are under assault for killing fish; ethanol and biomass fuels produce greenhouse gases just as fossils do; and geothermal power releases toxic ground and water contaminates. ... "
" ... But what if you could break down polluting plastic now, and re-use it? Yes, for years residents worldwide dutifully place their used plastic in recycling bins. Trouble is, a lot of the malignant material ends up in landfills anyway, where it contaminates groundwater. Colored plastic bottles, for instance, are hard to re-use, because their dye doesn’t come out. And forget about containers coated with food residue and other gunk. So your milk jug is refashioned into a pipe, but your sticky yogurt carton goes into the town dump. ... "
" ... Finally, residents of many countries in the East have years of experience in wearing a mask correctly. As much as everyone wants to believe they will wear them correctly, they actually underestimate how difficult it is to do so: you must wash your hands before and after putting it on, never touch it, wash your hands immediately if you accidentally touch it, and keep it clean and sanitized in between wearing. We all have heard repeatedly how often we touch our faces. If you wear a mask, you might touch your face less—but you might touch the mask itself just as often or nearly as much, which contaminates your hands and then contaminates anything you touch until you wash your hands. ... "
" ... It depends on how exposed you are to fracking data. People will say that fracking contaminates aquifers that supply surface water for drinking. For shale wells deeper than 5,000 ft, the fracs don’t grow up to the aquifers because the aquifers are usually shallower than 1,000 ft. Microseismic data confirm that shale fracs don’t grow in height anywhere near aquifers. So fracking doesn’t directly contaminate aquifers. ... "
" ... The idea is simple, but the execution of that idea requires extraordinary technologies, Tyson says. You need a planet that transits in front of its host star where the atmosphere contaminates the spectra in a way that you can then say this is in the star and this is from the planet itself, he says. The atmosphere is the best first pass at this —- short of going there and analyzing soils, he notes. ... "