Australians' concern over global warming rebounds, page-51

  1. 2,410 Posts.
    (The 1950-1970 flat spot was largely due to increased coal fired sulphate aerosol emmissions that cause cooling. After the US Clean Air Act and other similar legislation around the world the sulphates emmissions were rapidly reduced).

    Speculation and impossible to prove.
 
arrow-down-2 Created with Sketch. arrow-down-2 Created with Sketch.