By Gregory Wrightstone People should be celebrating, not demonizing, modern increases in atmospheric carbon dioxide (CO2). We cannot overstate the importance of the gas. Without it, life doesn’t exist. First, a bit of history: During each of the last four glacial advances, CO2’s concentration fell below 190 parts per million (ppm), less than 50 percent of our current concentration of … Continue reading More Carbon Dioxide Is Good, Less Is Bad