On a changing planet, NASA goes green

"NASA is a scientific leader, globally and nationally," said Denise Thaller, director of NASA's Environmental Management Division. "We embody that focus on the stewardship of the Earth, so we need to lead by example. We need ...

The potential economic impact of volcano alerts

The Volcano Alert Level (VAL) system, standardized by the United States Geological Survey (USGS) in 2006, is meant to save lives and keep citizens living in the shadow of an active volcano informed of their current level ...

Physicists develop new material for water desalination

Titanium dioxide nanoparticles with gold absorb about 96% of the solar spectrum and turn it into heat. The material can accelerate the evaporation in desalination plants up to 2.5 times and can track hazardous molecules and ...

Crops grown in Bangalore high on toxic heavy metals

Scientists in Bangalore, India have found toxic levels of four heavy metals, chromium, nickel, cadmium and lead, in crops and vegetables grown on soil irrigated with water from six lakes in the city, reports a study published ...

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