Over 33 days, Nina Gordon-Kirsch walked 240 miles from her California home to the Highland Lakes in the Sierra Nevada mountains. Now she's releasing a documentary about her journey

Efforts to rehabilitate valley conduit stymied as conservationists seek to reverse damage from years of conflict and politics, resource abuse and pollution

With its water dams crucially low, Hasmheite Kingdom, among world's most water-deficient places, fears a warming planet will make the situation even more severe

Arava Institute for Environmental Studies predicts West Bank move would also freeze essential cooperation on environmental issues, likely intensify effects of climate change

Society for the Protection of Nature in Israel says Energy Ministry allowed Greek company to explore deep-sea region despite knowing of site's great sensitivity