19 August 2016, Washington Post, ‘Climate change is water change’ — why the Colorado River system is headed for major trouble. There’s good news and bad news for the drought-stricken Colorado River system, according to projections just released in a new federal report from the Bureau of Reclamation, manager of dams, power plants and canals. The report predicts that Lake Mead — the river system’s largest reservoir, supplying water to millions of people in Nevada, Arizona, California and Mexico — will narrowly escape a shortage declaration next year. But a shortage is looking imminent in 2018, and water experts are growing ever more worried about the river system’s future. The Colorado River basin has been plagued with drought for 15 years now, and the effects are starting to show. Earlier this spring, Lake Mead — which feeds 90 percent of the water supply in Las Vegas, alone — dropped to its lowest levels since the Hoover Dam was completed in 1936. In fact, the last time the lake was at full capacity, with water levels 1,225 feet above sea level, was in 1983. Since then, and particularly since the year 2000, its surface levels have been steadily dropping, leaving behind a striking white “bathtub ring” around the shoreline showing how the water levels have decreased over the years. Currently, demand on Lake Mead has been removing more water than is being replenished, resulting in a deficit of about 1.2 million acre-feet, or about 400 billion gallons, each year. According to federal guidelines, a shortage is to be declared at the start of any given year if Lake Mead’s water levels have sunk below 1,075 feet above sea level. The new federal projections, spanning the next 24 months, suggest that the elevation will be hovering just below 1,079 feet at the end of this December. Read More here
Yearly Archives: 2016
19 August 2016. Climate News Network, Internet energy impacts on climate. New research warns that the growing reliance on smart technologies is leading to a rapid rise in internet energy demand that will push up carbon dioxide emissions. Switch off your computer, dust off your old typewriter, sharpen all the pencils you can find, lay in stocks of postage stamps − and that’s just the start. Our immersion in the digital society – and particularly our growing reliance on the Internet of Things – could mean uncontrolled demand for energy and spiralling emissions of carbon dioxide and the other greenhouse gases that are driving climate change. Researchers from the School of Computing and Communications (SCC) at the University of Lancaster, UK, say the growth of remote digital sensors and devices connected to the internet – the Internet of Things – can cause unprecedented and, in principle, almost unlimited rises in the energy consumed by smart technologies. They warn that the world now needs to consider how to limit data growth on the internet. Read More here
18 August 2016, New Internationalist, Climate change and colonial history make a toxic combination. New research points to a powerful link between climate change and armed conflict. It also finds that countries that are ethnically mixed are more likely to experience this kind of conflict. But their results may actually tell us more about the consequences of colonialism than ethnic diversity. This new research joins a raft of existing research on climate change and conflict – often reaching competing conclusions. What is the link between climate change and conflict? This isn’t an issue that can be solved with one study. There are in fact hundreds of studies looking at this issue. And they don’t all reach the same conclusion. Some studies do show that climate impacts lead to increased violence. But some studies find that there was actually no connection at all. Being hit by a disaster or climate change impacts didn’t make any difference to levels of violence. Some studies even found the opposite. Climate change impacts actually reduced some kinds of violence. So what happens when we look at all this research as a whole? Yes, some of the studies point in different directions. But what about when we consider all the research together? Does it point to powerful climate – conflict connection, or not? It still isn’t clear. Read More here
16 August 2016, Yale Climate Connections, TV Meteorologists Seen Warming to Climate Science. This month’s video reports on a continuing evolution in recent years in TV weathercasters’ willingness to put their forecasts in the context of a warming climate. is month’s “This is Not Cool” Yale Climate Connections video reports several leading TV weathercasters’ views on discussing climate in the context of weather forecasting. 
Through their own words in a series of in-person and Skype interviews, plus clips from some recent broadcasts on extreme weather events, independent videographer Peter Sinclair’s video describes the rapidly evolving perspectives: prominent national and local broadcast meteorologists saying they now see it as their responsibility to keep certain weather events in the context of the changing climate. The TV weathercasters featured in the video relate how their views on the science of climate change have evolved in recent years. “I think you’re seeing more and more TV meteorologists understand that responsibility,” says Washington Post meteorologist Jason Samenow. Raleigh, N.C., WRAL-TV meteorologist Greg Fishel points to TV weathercasters being a principal link between the science community and the public, placing a “tremendous responsibility to make sure that we are not letting any ideology into our science reporting, that we are dealing with facts and relaying them as accurately as we can to the public.” Phoenix ABC 15 chief meteorologist Amber Sullins points to “a definite increase in the amount of extreme heat just in my life time there in the City of Phoenix.”“It’s irresponsible if you don’t put the current weather trends into some sort of climate context,” Samenow says. “There are some people who don’t want to hear about that, but you’re not telling the entire story if you just report the weather and you don’t explain how this weather fits into changes which are happening.” Read More here