Residents of Lebanon's Beqaa Valley say pollution in the Litani River is responsible for a host of chronic health problems. While a causal link is hard to prove, cleanup efforts are precarious amid the country's economic crisis and shifting blame between refugees and government inaction.

Alkaline hydrolysis is an end-of-life option that’s gaining popularity in Canada and the U.S. It’s marketed as a greener form of cremation — a way to still end up with ashes, but without sending harmful emissions into the air. But getting the technology approved by lawmakers has proven difficult.

When Pervis Payne was sentenced to death more than three decades ago, it was permissible to execute someone with an intellectual disability. A Supreme Court decision changed that in 2002, but Payne's disability was acknowledged only last year. Why did it take so long to remove him from The Row?

Urbanization in Lagos, Nigeria, is moving at a rapid clip — burying mangrove forests and wetlands under mounds of sand to make way for wealthy subdivisions. Without strong regulations around how that sand is harvested, the social, economic, and environmental consequences are vast.

Scientists and counterterrorism experts believe understanding the underlying motivations of radical extremists will help them deradicalize people. Now, one group has studied the brain activity of active extremists after asking them to contemplate the values they are willing to fight and die for.

In December of last year, Congress passed legislation that gives the Environmental Protection Agency authority to phase out most hydrofluorocarbons — potent greenhouse gases that keep refrigerators cool — over the next 15 years. But there's no perfect alternative to replace them.

Twenty years ago Portugal decriminalized all drugs as part of a bigger national strategy to fight addiction. Last month Oregon became the first U.S. state to do the same, in a policy modeled off Portugal’s approach — but many questions about how success may translate remain unanswered.

Amid a worldwide mental health emergency, the discovery of new pharmaceuticals to treat conditions like depression has stalled. But researchers and therapists are showing that when paired with therapy, psychedelic drugs like LSD and magic mushrooms are a new class of promising treatments.

In India, macaque monkeys are a menace — attacking people for food, breaking into offices, and in one state, damaging at least 54 million dollars worth of crops. A sterilization program aimed to curb the population, but some experts and locals question if it’s working or even the right approach.

A recent U.S. Supreme Court decision on the dusky gopher frog now has conservationists and developers squaring off over the legal definition of the term ‘habitat.’ The accepted meaning will guide American lawmakers in designating protected areas for endangered species across the country.