What is a debris flow?

Landslides constitute one of the most destructive geological hazards in the world today. One of the main reasons for this is because of the high speeds that slides can reach, up to 160 km/hour (100 mph). Another is the fact ...

Humans can make rockfalls from earthquakes more dangerous

Earthquakes (including the tsunamis they generate) are Earth's most fatal natural hazard, accounting for approximately 55% of the more than 1.35 million disaster deaths in the last two decades. The US Geological Survey predicts ...

New quantum cascade lasers emit more light than heat

Northwestern University researchers have developed compact, mid-infrared laser diodes that generate more light than heat - a breakthroughs in quantum cascade laser efficiency.

Duke study offers 7 safeguards for hydraulic fracturing

A new report by Duke University researchers offers several health and environmental measures for North Carolina lawmakers to consider as they debate legalizing horizontal drilling and hydraulic fracturing for natural gas.

What's beneath Hawaii's most active volcano?

Step away from the villages and idyllic beaches of Hawaii, and you may think you've been transported to the moon. Walking along the lava flows of the Kilauea volcano, the landscape changes from a lush tropical paradise to ...

Get ready for climate change, says UN panel

The toll from ever-more intense floods, drought, and heatwaves will crescendo this century unless humanity anticipates the onslaught, according to a UN report set to be unveiled on Friday.

Screening eco-innovation level

Reducing the use of natural resources and lowering the amount of harmful substances across the life-cycle of a product or process has become a must for innovation. But smaller companies have yet to make it happen.

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