Sierra Club Press Release: Washington, DC: The Obama Administration today took a critical step in finalizing protections to keep more than a million acres of public land around Grand Canyon National Park free from mineral exploration and new mining. The decision comes as the lands around the Grand Canyon are threatened by thousands of new [...]

CAMBRIDGE, Mass. — In what could set the stage for a fundamental shift in commercial aviation, an MIT-led team has designed a green airplane that is estimated to use 70 percent less fuel than current planes while also reducing noise and emission of nitrogen oxides (NOx). The design was one of two that the team, [...]