As sightings of leopards in populated areas increase, Indian authorities are trapping the animals and keeping them in captivity — often in small cages without adequate food or veterinary care. The real solution, wildlife advocates say, is to educate the public on how to coexist with the big cats.

Gary, Indiana is joining Detroit and other fading U.S. industrial centers in an effort to turn abandoned neighborhoods and factory sites into gardens, parks, and forests. In addition to the environmental benefits, these greening initiatives may help catalyze an economic recovery.

Donnel Baird has launched a startup that aims to revolutionize how small businesses and nonprofits secure funding for energy efficiency and clean energy projects in low-income neighborhoods. In a Yale Environment 360 interview, he talks about how he plans to bring his vision to dozens of U.S. cities.

India’s megacities have some the deadliest air and worst traffic congestion in the world. But Indian startups are now launching initiatives that link smart-phone apps and private shuttle buses and could help keep cars and other motorized vehicles off the roads.

Until recently, little was known about the extent of methane leaking from urban gas distribution pipes and its impact on global warming. But recent advances in detecting this potent greenhouse gas are pushing U.S. states to begin addressing this long-neglected problem.