Arkansas Democrat-Gazette

Don’t ignore climate change

- KIM COBB Kim Cobb is the Georgia Power chair and professor in the School of Earth and Atmospheri­c Sciences and director of the global change program at the Georgia Institute of Technology.

This past week was a grim one in climate history. First, an internatio­nal group of scientists released a long-anticipate­d report detailing in excruciati­ng detail the extra damages we can expect unless we slam our foot on the fossil fuel brakes right now. A few days later, Hurricane Michael came barreling out of the Gulf of Mexico with a late-breaking intensific­ation that transforme­d the Florida Panhandle into a landscape straight out of a horror movie.

We are exceptiona­lly ill-prepared for the climate threats that are unfolding today, let alone those of the next decades. Rising seas caused by warming and rising oceans and melting ice are already bringing low-lying coastlines under threat from so-called “blue sky flooding.” And studies now show that there are plenty of reasons to think that hurricanes will get stronger and wetter as the ocean and the overlying atmosphere warm.

As the climate report indicates, we need to be preparing for things to get worse. Scientists can provide decision-makers with estimates of the rates of sea-level rise over the next decades. But we also need to consider how the natural and built environmen­ts may compound or mitigate flood risks to communitie­s. And policymake­rs must decide how to allocate finite public resources to protecting lives and property.

The new climate report outlines a path for an aggressive drawdown of atmospheri­c carbon dioxide levels that would avoid some of the worst damages associated with climate change, and we must get started in earnest on a host of no-regrets actions toward this end. Federal action is long overdue.

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