California Drought: Is this the big one?




RADIO ECOSHOCK show

Summary: RADIO ECOSHOCK SPECIAL ON CALIFORNIA DROUGHT Despite recent rains, California's reservoirs are near empty, snow-pack light, and groundwater depleted. Four experts on a drought that really started in 2006, impacts on economy, food, farming, and nature. Guests: Dr. Peter Gleick, Dr. Jay Famiglietti, David Schroeder, Dr. Reagan Waskom http://tinyurl.com/lrqaxqe THE CALIFORNIA DROUGHT IS NOT OVER! Rainstorms finally arrived in California, after a 14 month drought with no significant rain. But the big reservoirs are still pitifully low, and snow pack is less than a quarter of normal. Hundreds of thousands of acres will not be planted, and food bills will likely go up in North America, and possibly around the world. This is the Radio Ecoshock special on the California drought, as a case study of what we can expect in many parts of the Earth. I've lined up 4 experts all with something new for you. Dr. Peter Gleick is a climate and water specialist who has been warning this could happen for years. Dr. Reagan Waskom is another water and agriculture expert from Colorado. We connect with boots-on-the ground water conservation specialist David Schroeder in Montclair, right on the edge of thirsty Los Angeles. Finally, we get back to the big picture, as Professor Jay Famiglietti at University of California Irvine warns of depletion of the ground water under one of the world's biggest food producing areas. That's a trend all over the world, as we race toward peak water. Download/listen to this Radio Ecoshock show in CD Quality or Lo-Fi PETER GLEICK: Is the drought climate change? Our first guest is Dr. Peter Gleick. He's president of the Pacific Institute in Oakland, California, one of the world's leading independent think tanks on water issues. Peter is also a scientist known around the world. Peter introduced the term "Bellwether Drought" for this event. We know climate change threatens the water cycle. Scientists believe the wet areas (like the UK!) will get wetter, and the dry areas like California, will get dryer. So the dice are loaded for more droughts to occur in this major food producing area. Dr. Gleick points out we could say this drought started in at least 2006. There have been several drier-than-normal years since then. Scientists have found records showing California has experienced droughts lasting more than a hundred years in the past, in the 1100's for example. So we may be asking if human-induced climate change has triggered this drought cycle. The causes of regional weather events are complex. We have ocean currents, natural cycles like El Nino and El Nina, and changes to the Jet Stream. All of those, especially the Jet Stream (as shown by the work of Jennifer Francis et al at Rutgers) can be influenced by climate change. It's a Bellwether event because whether or not we can nail down direct causation by climate disruption - it's a sure test of what is likely during the coming decades. As in Australia, it is possible Euro-humans arrived in California during a cyclical wet spell that was bound to end. But have we hastened that process? I also talk with Peter about desalination, it's promises and obstacles. A new desalination plant has been build to feed the San Diego water system. But really, it's so energy intensive and expensive that desalination cannot save the whole California agricultural system. Peter Gleick is an influential scientist in many places. He talks about the global work his institute is involved in, and it's heavy-duty stuff. It's cool he Tweeted this program link out to his 11,000 plus followers. You can download or listen to this 18 minute interview with Dr. Peter Gleick in CD Quality or Lo-Fi. DR. JAY FAMIGLIETTI: Looking at the drought from space. When the rains don't fall in California, every one checks their wallet for rising food prices. But rain or not, cities and farmers are pumping out California groundwater at an alarming rate. Thanks to new satellite science, now we know how much of that unsee