No more dry mucous membranes when flying

Hovering at around 20 percent, the relative humidity in aircraft is kept very low to keep condensation from building up in the cabin. The downside for passengers and the crew is that this dries out the mucous membranes. Now ...

Short of water, Peru's engineers 'make our own'

The message emblazoned on a billboard outside the Peruvian capital sounds almost too good to be true: drinkable water for anyone who wants some in this arid village.

Amazon's flying water vapor rivers bring rain to Brazil

As devastating drought spreads across much of the globe, British-born pilot Gerard Moss flies above the Amazon rainforest to show how its "flying rivers"—humid air currents—bring rain to Brazil and South America.

New sensor network protecting art in NY museum

(AP) -- It will take a good eye to spot them, but dozens of tiny, very modern works of art have been installed near the 15th-century unicorn tapestries and other medieval masterpieces at a New York City museum.

Tornadoes whipped up by wind, not climate: officials

US meteorologists warned Thursday it would be a mistake to blame climate change for a seeming increase in tornadoes in the wake of deadly storms that have ripped through the US south.

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