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Reminds me of a meme: Scientist: We can build a big shield to block out the sun and stop global warming! Me: Is it going to rain tomorrow? Scientist: Weather

• shagie 4y ago
  We kind of do it every day though with contrails. https://globalnews.ca/news/2934513/empty-skies-after-911-set-the-stage-for-an-unlikely-climate-change-experiment/ https://globalnews.ca/news/2934513/empty-skies-after-911-set... And then there's the "we got rid of it" with the Clean Air Act: https://en.wikipedia.org/wiki/Global_dimming https://en.wikipedia.org/wiki/Global_dimming > Sulfate aerosols have declined significantly since 1970 with the Clean Air Act in the United States and similar policies in Europe. The Clean Air Act was strengthened in 1977 and 1990. According to the EPA, from 1970 to 2005, total emissions of the six principal air pollutants, including PM's, dropped by 53% in the US. In 1975, the masked effects of trapped greenhouse gases finally started to emerge and have dominated ever since. > The Baseline Surface Radiation Network (BSRN) has been collecting surface measurements. BSRN was started in the early 1990s and updated the archives in this time. Analysis of recent data reveals that the surface of the planet has brightened by about 4% in the past decade. The brightening trend is corroborated by other data, including satellite analyses.