Climate

Study examines the role of naturally occurring halogens in atmospheric deposition
June 30, 2015 06:11 AM - Cooperative Institute for Research in Environmental Sciences (CIRES) and the University of Colorado Boulder

It’s been difficult to explain patterns of toxic mercury in some parts of the world, such as why there’s so much of the toxin deposited into ecosystems from the air in the southeastern United States, even upwind of usual sources.

A new analysis led by researchers at the University of Colorado Boulder shows that one key to understanding mercury’s strange behavior may be the unexpected reactivity of naturally occurring halogen compounds from the ocean.

How Rainwater Could Save Rupees
June 29, 2015 11:24 AM - Ashley Morrow, NASA Goddard Space Flight Center

Rainwater could save people in India a bucket of money, according to a new study by scientists looking at NASA satellite data. The study, partially funded by NASA’s Precipitation Measurement Missions, found that collecting rainwater for vegetable irrigation could reduce water bills, increase caloric intake and even provide a second source of income for people in India.

What California can learn for Israel on solving serious water shortages
June 29, 2015 06:13 AM - Jan Lee, Triple Pundit

California is still counting up the damage from the 2014 drought, which resulted in more than $200 million in losses in the dairy and livestock industry and a staggering $810 million in crop production. And analysts are predicting this year to be even worse.

But many will admit that if there is any country on earth that knows how to trump a three-year (and counting) drought cycle and convert a wasteland to oasis, it’s Israel. For thousands of years, populations have been wresting a livelihood from the desert of what is now Israel, refining the techniques that would one day result in an agricultural paradise.

Study examines overall carbon cost of fuel from Canadian oil sands
June 28, 2015 06:34 AM - UC Davis via the ECOreport, ECOreport

Gasoline and diesel fuel extracted and refined from Canadian oil sands will release about 20 percent more carbon into the atmosphere over the oil’s lifetime than fuel from conventional crude sources in the Unied States, according to a study by the U.S. Department of Energy’s Argonne National Laboratory; the University of California, Davis; and Stanford University.

The researchers used a life-cycle, or “well-to-wheels,” approach, gathering publicly available data on 27 large Canadian oil sands production facilities. The study, published in the journal Environmental Science and Technology, found the additional carbon impact of Canadian oil sands was largely related to the energy required for extraction and refining.

California's Isla Rasa being abandoned by seabirds
June 27, 2015 09:11 AM - ScienceDaily

Isla Rasa, in the Gulf of California, is renowned for its massive aggregations of nesting seabirds. Over 95 percent of the world populations of Elegant Terns and Heerman's Gulls concentrate unfailingly every year on this tiny island to nest. Ever since the phenomenon was described by L. W. Walker in 1953 the island has been a magnet for tourists, naturalists, filmmakers, and seabird researchers.

During some years in the last two decades, however, the seabirds have arrived to the island in April, as they usually do, but leave soon after without nesting. The first event was the 1998 "El Niño," when oceanic productivity collapsed all along the eastern Pacific coast from Chile to California. But then colony desertion happened again in 2003, and since then it has recurred with increasing frequency in 2009, 2010, 2014, and 2015. Researchers and conservationists were asking themselves where are the birds going when they leave their ancestral nesting ground, and what is causing the abandonment of their historic nesting site.

Beijing growing explosively, impacting weather and climate
June 26, 2015 05:12 AM - JPL NASA

A new study by scientists using data from NASA's QuikScat satellite has demonstrated a novel technique to quantify urban growth based on observed changes in physical infrastructure. The researchers used the technique to study the rapid urban growth in Beijing, China, finding that its physical area quadrupled between 2000 and 2009. 

A team led by Mark Jacobson of Stanford University, Palo Alto, California, and Son Nghiem of NASA's Jet Propulsion Laboratory, Pasadena, California, used data from QuikScat to measure the extent of infrastructure changes, such as new buildings and roads, in China's capital. They then quantified how urban growth has changed Beijing's wind patterns and pollution, using a computer model of climate and air quality developed by Jacobson. 

Nepal deals with climate change
June 25, 2015 02:33 PM - SciDevNet., SciDevNet

On 25 April, Nepal was hit by a 7.8 magnitude earthquake. But as well as quakes, the country is also vulnerable to climate change, a combination that makes it harder to build resilience and risk preparedness.
 
As mean temperatures rise in South Asia, the monsoon season has changed, leading to more-erratic rainfall and increasing the risk of floods and landslides that can claim lives and wreck food production.
 

Measuring Climate Change Action
June 23, 2015 07:29 AM - MIT Joint Program on the Science and Policy of Global Change

Reducing global greenhouse gas emissions could have big benefits in the U.S., according to a report released today by the U.S. Environmental Protection Agency (EPA), including thousands of avoided deaths from extreme heat, billions of dollars in saved infrastructure expenses, and prevented destruction of natural resources and ecosystems.

A look at N2O: Nitrous oxide emissions may be higher than previously thought
June 22, 2015 05:01 PM - Helmholtz Centre for Ocean Research Kiel

In addition to carbon dioxide there are plenty of other greenhouse gases. Nitrous oxide is one of them. However, a global assessment of emissions from the oceans is difficult because the measurement methods used so far have only allowed rough estimates. Using a new technology for continuous measurements, researchers of the GEOMAR Helmholtz Centre for Ocean Research Kiel and the Christian-Albrechts-Universität zu Kiel have now discovered that nitrous oxide emissions from the Southeast Pacific are much higher than previously thought. They publish their data in the international journal Nature Gesoscience.

Kansas City goes All-In for EV's
June 6, 2015 08:05 AM - BOB SHETH, Electric Forum, Electric Forum

Even though there is a long way to go before electric vehicles are accepted by all motorists, there is no doubt that the Kansas City Power and Light company is putting Kansas City on the map. The company announced very interesting and very ambitious plans to install 1001 electric vehicle charging stations across the area which it serves. This is certainly a very interesting development at a time when advances in electric vehicle battery technology are hitting the headlines but consumers are still concerned about range anxiety.

Will this move make a difference?

As one executive put it “if you install the charging stations they will come” which just about sums it up. The $20 million “clean charging network” will consist of 1001 charging stations which will be able to charge two cars at the time. Not only will this encourage more electric vehicles in the region but it will also greatly help with charging at busy times of the day. The simple fact is that until somebody actually took the plunge and decided to install electric vehicle charging stations we would always be at the beck and call of electric vehicle battery technology.

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