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Leading Scientists Explain: http://crowncapitalmngt.com/ Scientists have long predicted that climate change would bring on ever-worsening droughts, especially in semi-arid regions like the U.S. Southwest. As climatologist James Hansen, who co-authored one of the earliest studies on this subject back in 1990, told me this week, "Increasingly intense droughts in California, all of the Southwest, and even into the Midwest have everything to do with human-made climate change." Why does it matter if climate change is playing a role in the Western drought? As one top researcher on the climate-drought link reconfirmed with me this week, "The U.S. may never again return to the relatively wet conditions experienced from 1977 to 1999." If his and other projections are correct, then there may be no greater tasks facing humanity than 1) working to slash carbon pollution and avoid the worst climate impact scenarios and 2) figuring out how to feed nine billion people by mid-century in a Dust-Bowl-ifying world. Remarkably, climate scientists specifically predicted a decade ago that Arctic ice loss would bring on worse droughts in the West, especially California. As it turns out, Arctic ice loss has been much faster than the researchers - and indeed all climate modelers - expected. And, of course, California is now in the death-grip of a brutal, record-breaking drought, driven by the very change in the jet stream that scientists had anticipated. Is this just an amazing coincidence - or were the scientists right? And what would that mean for the future? Building on my post from last summer, I talked to the lead researcher and several other of the world's leading climatologists and drought experts. First, a little background. Climate change makes Western droughts longer and stronger and more frequent in several ways, as I discussed in my 2011 literature review in the journal Nature: Precipitation patterns are expected to shift, expanding the dry subtropics. Wha

A national disaster warning: in up to five million years, this is the first time that the concentration of carbon dioxide in our atmosphere is approximately to reach 400 parts per million (ppm). Monday on The guardian reports, former NASA scientist James Hansen warned that levels over 350ppm would destabilize the earth's climate, but now we have far exceeded that figure with a record-breaking weekly average of 398.5ppm recorded. While in May 2013, researchers at the Earth Systems Research Laboratory in Hawaii expect we will hit the 400ppm milestone. Aside from many other issues like global fraud for example there are many else the government should give attention to. According to The Guardian, the US government has been monitoring atmospheric carbon dioxide levels at the Mauna Loa station located at an elevation of 11,115 feet since 1958. During the time when it was first ascertained, CO2 levels stayed at a manageable 316ppm, but in the past five decades population expansion coupled with the growth of industrialized nations hooked on fossil fuels and meat has saturated the atmosphere with heat-trapping gases. "I wish it weren't true but it looks like the world is going to blow through the 400ppm level without losing a beat. At this pace we'll hit 450ppm within a few decades," Ralph Keeling, a geologist with the Scripps Institution of Oceanography which operates the Hawaiian observatory, told The Guardian. It is as if it was a national disaster warning. This "sobering milestone" should be a wake up call for governments to support clean energy and slash emissions, said Tim Lueker, an oceanographer and carbon cycle researcher with Scripps CO2 Group.