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Madeline Schreiber discusses arsenic and groundwater/rock interactions

Dr. Schreiber’s research program at Virginia Tech focuses on chemical hydrogeology. She and her students study the hydrologic and biogeochemical processes that influence the cycling of naturally-occurring and anthropogenic sources of contaminants.

In this video, Dr. Schreiber discusses the relationship between groundwater chemistry and arsenic release. Arsenic can be found in many minerals contained in aquifers but this harmful element does not always contaminate groundwater within the aquifer.

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The 2014 National Climate Assessment is released!

A public letter from:

Dr. John P. Holdren
Director, Office of Science and Technology Policy
The White House

climateassessment“Today, we released the third National Climate Assessment report, by far the most comprehensive look ever at climate change impacts in the United States.

Based on four years of work by hundreds of experts from government, academia, corporations, and public-interest organizations, the Assessment confirms abundant data and examples that climate change isn’t some distant threat — it’s affecting us now.

Not only are the planet and the nation warming on average, but a number of types of extreme weather events linked to climate change have become more frequent or intense in many regions, including heat waves, droughts, heavy downpours, floods, and some kinds of destructive storms.

The good news is that there are sensible steps that we can take to protect this country and the planet.

Those steps include, importantly, the three sets of actions making up the Climate Action Plan that President Obama announced last June: cutting carbon pollution in America; increasing preparedness for and resilience to the changes in climate that already are ongoing; and leading the international response to the climate change challenge.

We’ve made great progress in the year since his announcement — but there’s much more work to be done.

Watch this short video to learn more about the new report and see how climate change is affecting people across the United States today. Explore the full report, and find out how you can help — because every one of us has to do his or her part to meet the challenge of climate change.

Thank you,

John

Dr. John P. Holdren
Director, Office of Science and Technology Policy
The White House”

For more information about the assessment, go to http://www.globalchange.gov/

And… below is an article that mention’s Susan Hassol’s contribution to this report.

http://blogs.scientificamerican.com/guest-blog/2014/05/06/climate-report-nails-risk-communication

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Dr. Cayelan Carey: controlling phosphorous in a local drinking-water reservoir

Dr. Cayelan Carey, an assistant professor of biological sciences, and a team of students are doing research on clean water at Falling Creek Reservoir in Roanoke, Va. The team adds oxygen to the water to control phosphorous concentrations and studies the effects of the oxygen on the water.