Celebrating 125 Years On May 28, the nation's largest and most influential grassroots environmental organization celebrates its 125th birthday. Celebrate our 125th Anniversary with Your 5 Start a Team Sierra group and challenge 5 people to any activity—run a 5k, take a hike, host a BBQ—use your creativity and put the FUN in fundraiser. Trump Orders Clean Power Plan Dismantled in Setback for “Vitally Important” Clean Air White House tries to force a national realignment away from renewable energy back to fossil fuels Ban Lifted on Barbaric Wildlife Hunting Methods in Alaska The Senate passed a resolution that literally allows people to kill baby wild animals. Sierra Club Outings -- New Trips for 2017! Looking for a getaway? We've got 300+ ideas for you.