"Climate Justice NOW," they roared at the oil rig, which loomed like a yellow Darth Vader along the mouth of the Duwamish River.
Shell's dabbling in the Chukchi Sea, most feel, is now inevitable; for the moment, the Beaufort Sea won't be touched, but even that could change.
Cuba is breaking new ground in production yields, organic farming techniques, sustainability, and food security.
It's among the universe's first generation of galaxies, from 13.1 billion years ago.
We have entered a new geological era, in which human action is changing the physical world around us.
As California struggles to meet new water use restrictions, the governor is urging a sharp increase in fines for the worst violators.
It was a picture perfect Sunday for a peaceful march against the most violent instruments of war: nuclear weapons.
The first Arbor Day in the world was celebrated in the small Spanish village of Villanueva de la Sierra in 1805.
Scientists have linked a swarm of small earthquakes west of Fort Worth, Texas, to nearby natural gas wells and wastewater injection.
On Earth Day 2015, humanity faces increasing environmental dangers, but movements to solve the issues are growing.