Climate Change

A new peer-reviewed study published earlier this month in Earth’s Future suggests that it is possible to demonstrate that “emissions from company X cause injury Y.” It also could potentially provide evidence so industry could be forced to answer for climate impacts. The new methodological framework has, for the first time, drawn a straight line from single corporate emitters like Exxon or Chevron, or even whole countries like the United States, to specific heatwaves and areas of extreme rainfall. By running over 150 simulations across 8 different climate models, the study’s author, Christopher Callahan—an Earth systems scientist and assistant professor at Indiana University’s O’Neill School of Public and Environmental Affairs—built a statistical model to figure out the relationship between the amount of carbon dioxide in the atmosphere and the odds of extreme heat or rain. He then used real emissions data to calculate the extent to which specific fossil fuel emitters increased the risk of extreme weather.