What percent of Earth is water?

The Earth is often compared to a majestic blue marble, especially by those privileged few who have gazed upon it from orbit. This is due to the prevalence of water on the planet's surface. While water itself is not blue, ...

Frigid US city becomes haven in climate change era

Standing on the frigid coast of Lake Superior, thawing ice glistening in the northern Minnesota sun, Christina Welch recalls what made her trade the temperate vineyards of northern California for the notoriously chilly city ...

Q&A: One of the world's worst pests attacks California

One of the world's worst pests is infesting crops all over California. There are seven active quarantines spanning the length of the state, but experts say those affecting San Bernardino and Riverside counties are especially ...

Arctic ice melt is changing ocean currents

A major ocean current in the Arctic is faster and more turbulent as a result of rapid sea ice melt, a new study from NASA shows. The current is part of a delicate Arctic environment that is now flooded with fresh water, an ...

Renewable Energy Made by Mixing Salt and Fresh Water

(PhysOrg.com) -- When a river flows into the sea, the location is more than just a haven for water commerce. The mixing of fresh and salt water that occurs at an estuary also dissipates energy, as the different salinity waters ...

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