President Barack Obama joins the push to halt fossil fuel leases on public lands.
In 2015, Canada elected the first pro-environmental government in 10 years. What does that mean for 2016?
Sierra's editor in chief sums up the good, the bad and the ugly.
Funny or Die's celebrity-filled song mocks global-warming skeptics.
Mark Honstein, a wind turbine technician, climbs 280-foot-tall towers with spectacular views.
From 2005 to 2014, we increased our wind power by a factor of 10 and generated 33 times more solar electricity.
Michael Brune applauds the environmental victories of 2015.
Buying into America's fastest-growing energy source makes more sense than ever. And not just for wealthy enviros.
Presidential candidates tweet their reactions to Obama's rejection of Keystone pipeline.