The clock has moved one minute away from midnight—the longstanding symbol for the end of civilization—signaling the possibility that "we are poised to bend the arc of history toward a world free of nuclear weapons."
Instead of having 10 percent unemployment, what if we worked 10 percent fewer hours?
Jonathan Schell, a leader of the anti-nuclear movement, offers motivation and tactical advice to the new generation of climate activists.
With presidents constrained by forces we can’t even see, the story of presidential achievement is in large measure the story of the movements that make action possible.
California residents stand to gain a lot from the state's efforts to cap greenhouse gases: less pollution, greener infrastructure, and a yearly check in the mailbox.
In a broad new study, scientists conclude that the impacts of mountaintop removal are "pervasive and irreversible."
An EPA rule requiring large polluters to report greenhouse gases went into effect December 29, 2009.
Five years ago, the Indian Ocean tsunami allowed resort developers in Thailand to push indigenous coastal communities off their land. Villages are fighting back—and winning legal rights to their homes.
Debt relief has allowed poor nations to pay for schools and health care instead of loan interest. A new bill in the U.S. Congress would offer relief to more countries and make lending more responsible.