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AIR AND SPACE April 21, 2016

Solar Impulse 2 takes off from Hawaii, continues epic solar-powered journey

Solar Impulse 2 has taken off from Hawaii on the ninth leg of its record-breaking solar-powered journey around the world.

Energy April 5, 2016

NASA to officially unveil its green rocket fuel project in Colorado this week

Since 2012, the folks over at NASA have been working on developing a high performance "green" rocket propellant it hoped to one day use as an alternative to the incredibly toxic hydrazine fuel currently in use.

Green March 19, 2016

Lights out: Cities worldwide mark the 10th annual Earth Hour

Cities around the world turned out the lights Saturday evening to mark the 10th annualEarth Hour, a global movement dedicated to protecting the planet and highlighting the effects of climate change.

VIDEO February 10, 2016

Amazing building can eat smog

Four4Four Science

Energy January 27, 2016

The truth about biofuels: Reality bites

The Obama administration is tacitly admitting that biofuels aren鈥檛 better than fossil fuels when it comes to greenhouse gases. In fact, they are worse.

Energy December 20, 2015

Obama administration gives wind farms a pass on eagle deaths, prosecutes oil companies

More than 573,000 birds are killed by the country's wind farms each year, including 83,000 hunting birds such as hawks, falcons and eagles, according to an estimate published in March in the peer-reviewed Wildlife Society Bulletin.

Climate December 20, 2015

New study says threat of man-made global warming greatly exaggerated

A peer-reviewed climate change study released Wednesday by聽the Nongovernmental International Panel on Climate Change finds the threat of man-made global warming to be not only greatly exaggerated but so small as to be 鈥渆mbedded within the background variability of the natural climate system鈥� and not dangerous.

STATE AND LOCAL December 20, 2015

Solar company that got millions from Oregon to suspend Portland operations

The company based in San Jose, Calif., notified the state Monday that it would suspend its Portland operations in June and lay off 29 workers.

Green December 20, 2015

Customers tell horror stories of green company that gets $422M in tax dollars

SolarCity customers are complaining about problems such as shoddy installation, poor customer service and hidden fees.

AUTO December 10, 2015

Trailblazing Israeli electric car company announces it will fold

Perhaps Israel's best known clean-tech company, Better Place was developing a nationwide network of charging and battery-swapping stations.

Climate Change December 9, 2015

The future of climate change action is in Washington, not Paris

The 2010 climate meeting ended as a dramatic failure. Now we are back in Paris, hoping that history does not repeat itself.