We are heading into totally uncharted territory, and we have only just begun to see the effects at scale. California is only one of many locations around the world, from sub-saharan Africa, Australia, and South America, dealing with the effects of our runaway economic practices. Here on the Olympic Peninsula, a serious drought hazard is building and with it, record low river flows, which affect salmon runs, and other creatures that rely on them.
The milestone was announced by the US National Oceanic and Atmospheric Administration (Noaa). They said it was the first month that the entire globe broke 400ppm, reaching levels that haven’t been seen for about two million years. Noaa’s Pieter Tans said that reaching the mark was “a significant milestone”. Scientists announced that CO2 had passed the 400 ppm level for the first time in the Arctic in 2012, and then at Mauna Loa in Hawaii in 2013. (BBC) See also: Summer 2015: The Northwest’s Global Warming Stress Testhttp://cliffmass.blogspot.com/2015/05/summer-2015-northwests-global-warming.html Cliff Mass reports. (Weather Blog)