EmbedVideo(7877, 514, 320); In an unlikely alliance, natural gas companies and environmentalists have decided to work together to make fracking safer. Rick Karr travels to Pennsylvania to explore the tensions this has created among environmental groups.

.embed-container { position: relative; padding-bottom: 2.25%; padding-top: 30px; height: 0; overflow: hidden; max-width: 100%; height: auto; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } NewsHour Weekend's Tracy Wholf explores…

Greenland's parliament voted to overturn a 25-year-old ban on uranium mining on the island nation, the Associated Press reports. Lifting the ban on uranium mining will allow the country to unearth rare earth metals as well. Greenland is…

ITV News has obtained footage proving - for the first time - that fishermen in South America are illegally hunting dolphins. Environmentalists believe thousands of the animals are slaughtered every year, with their meat being used as bait for sharks.

EmbedVideo(7753, 514, 320); Tonight on NewsHour Weekend, we report from Hawaii, where a battle has erupted in Kauai between residents concerned about public health and large companies developing genetically modified seeds.