Energy Matters today from the American Energy Society's 19August2024 issue : Global warming remediation. Seems awfully expensive, but the largest Direct Air Capture and Storage of Carbon Dioxide, 36,000 tons of CO2/year, is the plant at Mammoth in Hellisheioi, Iceland. The biggest one in the U.S. was launched this month in Northern Oklahoma.  5.000 tons/year. Said to cost $200 per metric ton, about the highest of all the options. Carbon Capture and Storage (CCS)  can cost today as low as $50/ton. However, this "low" cost would still increase electricity cost by 5 cents/kilowatt-hour in a coal-fed powerplant. Implementation is increasing , but very slowly, because there is still no carbon tax. Industry is experimenting and will not move forward unless real decisions are made to combat global warming.   Cost prohibits any use at home, so applications range from heavy industry to natural gas processing to hydrogen production. CCS is especially necessary in synthetic fuel pro

  The largest meteor shower of this year is occurring now.  Above is an extraordinary  photo of the Perseid meteor shower on 12August2021 by Josh Drur y ( right ) over Stonehenge.  You also see our Milky Way.  The Perseids, associated with the Swift-Tuttle comet, started Monday morning and will continue for up to five nights.  The best time to watch is near dawn before there is any kind of sunlight.   However, the best night was the first one, partly because of Moon conditions.  From all indications, not worth a bother watching the Perseids anymore this year. These flaming particles burn up by the time they get as close as 50 miles from the Earth's surface. Note that this comet has a 133-year orbit, and what you see is the leftover particles from previous visits. John Denver's song  Rocky Mountain High  makes reference to this shower. Almost all meteor showers are associated with a passing comet or asteroid, and some are named after them.   However, the identification of the ev