Storms kill 14 in Mediterranean, east Europe

Storms have killed at least 14 people in Greece, Turkey and Bulgaria, with a Greek region hit by more rain in 24 hours than it normally sees in a year, officials said Wednesday.

Water harvesting in Death Valley: Conquering the arid wilderness

Korea is regarded as a "water-stressed nation." Although the country receives an annual precipitation of approximately 1,300mm, it is characterized by concentrated periods and specific regions, thereby giving rise to challenges ...

Do technological civilizations depend on atmospheric oxygen?

Nearly 2 million years ago a species of upright apes known as Homo erectus began to use fire. It was a gradual process, from opportunistic users of natural fires to masters able to craft flames from flint and tender. We are ...

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