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Steel, aluminum, titanium, or carbon fiber -- that is the question. Umbra tests the metals.
The Paddle in Seattle is just a hint of this city's commitment to fighting climate change. Next up: Eliminating its carbon footprint completely.
A North Carolina minister just slammed his state's energy monopoly for trying to turn poor people and people of color against solar power.
In Colorado, marijuana industry entrepreneurs are eager to open their own credit union -- but federal regulations are a total buzzkill.
Some climate deniers say scientists are skewing data to show a warming planet. Here's why they're wrong.
Thanks to a disclosure law in California, we now know that frackers are polluting water with petroleum chemicals, heavy metals, radioactive elements, and carcinogens.
Shell and ExxonMobil ignored for decades that drilling in Europe’s largest gas field was triggering quakes.
Not only are the emissions from your transatlantic flight to Rome gassing the climate -- they're also making it harder for that same flight to get off the ground in the first place.
The Interior Department is clearing the way for Shell to try drilling again off the Alaska coast, a treacherous undertaking on so many levels.