My Way News - Warming gas levels hit 'troubling milestone'
My Way News reports: "Monitoring stations across the Arctic this spring are measuring more than 400 parts per million of the heat-trapping gas in the atmosphere. The number isn't quite a surprise, because it's been rising at an accelerating pace. Years ago, it passed the 350 ppm mark that many scientists say is the highest safe level for carbon dioxide. It now stands globally at 395. So far, only the Arctic has reached that 400 level, but the rest of the world will follow soon."