Wally Broecker Letter to Tsongas in 1980 etc Poking the climate with a sharp stick First article with “climate change” in 1975 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on LinkedIn (Opens in new window) LinkedIn Share on Tumblr (Opens in new window) Tumblr Share on Pinterest (Opens in new window) Pinterest Share on Reddit (Opens in new window) Reddit Print (Opens in new window) Print Like Loading...