Passing 400 on the way to the frog test

In mid-May the atmospheric carbon dioxide measurement at Mauna Loa in Hawaii hit 400 parts per million (ppm). The scientists of the world (at least 95% of them) have declared that 450 ppm is the point where it may cause the atmosphere to warm to at least 2° Celsius, to the point where it was 3 million years ago (when sea levels were 75 feet higher). That, according to many forecasts, could produce many serious climate change events such as extra strength hurricanes and tornadoes—like the one that leveled parts of Moore, Oklahoma last week—not to mention inundation of all low-lying coastal areas.
Yet, apart from the immediate victims of these catastrophic events, most of us are blithely unconcerned about the omens such disruptions represent. It reminds me of the old fable about the frog in a pan of water. Continue reading Passing 400 on the way to the frog test