Solar Energy Show

Direct Air Capture of CO2 - Panacea or Pandora's Box

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Sinopsis

Copyright 2022 - The Energy Show, Barry Cinnamon At the start of the Industrial Age the concentration of CO2 in the atmosphere was 280 parts per million (ppm). Now the concentration is over 420 ppm. This increase in CO2 levels was caused by burning fossil fuels -- coal, oil, gasoline and natural gas. High concentrations of atmospheric CO2 are the primary cause of global warming. We need to reduce the CO2 concentration in the atmosphere in order to slow and eventually reverse global warming, Obviously, reducing the use of fossil fuels will slow the buildup of CO2. And natural processes, such as photosynthesis, gradually reduce CO2 concentrations. Unfortunately, we don’t have time to wait for these relatively slow processes. One obvious way to accelerate CO2 removal is to use Direct Air Capture, or DAC. DAC technology has been used for years to remove CO2 from the waste streams (flue gas) from power plants. The CO2 is absorbed in a liquid or solid media — and is then compressed for use in industrial processe