Earth’s average global temperature from 2013 to 2017 compared to 1951 to 1980 average. Yellows, oranges, and reds show regions warmer than baseline. Credit: NASA James Hansen testified to Congress in 1988 that warming was caused by pollution and that ‘it is time to stop waffling so much.’ AP Photo/Dennis Cook Robert Brulle, Drexel University … Continue reading 30 years ago global warming became front-page news – and both Republicans and Democrats took it seriously