High-speed bus systems in crowded urban areas have taken off from Brazil to China, but introducing this form of mass transit to the teeming Indian capital of New Delhi has proven to be a vexing challenge.

High-altitude neotropical ecosystems known as páramos are increasingly at risk in Colombia and elsewhere in South America as major mining companies seek to exploit rich deposits of gold and other minerals. Such projects, scientists warn, could have serious impacts on critical water supplies.

A recent study shows that a surprisingly large amount of the seafood sold in U.S. markets is caught illegally. In a series of actions over the last few months, governments and international regulators have started taking aim at stopping this illicit trade in contraband fish.

Conservation groups are mounting campaigns to persuade Vietnamese consumers that buying rhino horn is decidedly uncool. But such efforts are likely to succeed only as part of a broader initiative to crack down on an illicit trade that is decimating African rhino populations.

A sophisticated and challenging experiment in Antarctica is the latest effort to study ocean acidification in the polar regions, where frigid waters are expected to feel most acutely the ecological impacts of acidic conditions not seen in millions of years.

From forests in Queens to wetlands in China, planners and scientists are promoting a new approach that incorporates experiments into landscape restoration projects to determine what works to the long-term benefit of nature and what does not.

Few companies have done as much damage to the world’s tropical forests as Asia Pulp & Paper. But under intense pressure from its customers and conservation groups, APP has embarked on a series of changes that could significantly reduce deforestation in Indonesia and serve as a model for forestry reform.

With a massive dam under construction in Laos and other dams on the way, the Mekong River is facing a wave of hydroelectric projects that could profoundly alter the river’s ecology and disrupt the food supplies of millions of people in Southeast Asia.

For decades, hazardous electronic waste from around the world has been processed in unsafe backyard recycling operations in Asia and Africa. Now, a small but growing movement is seeking to provide these informal collectors with incentives to sell e-waste to advanced recycling facilities.

With a sharp decline in pollinating insects, farmers are being encouraged to grow flowering plants that can support these important insects. It’s a fledgling movement that could help restore the pollinators that are essential for world food production.

Powered by solar panels and biomass, microgrids are spreading slowly across India, where 300 million people live without electricity. But can these off-grid technologies be scaled-up to bring low-carbon power to tens of millions of people?

In Borneo's Danum Valley — one of the last, untouched forest reserves in a region ravaged by logging and oil palm cultivation — a team of international and Malaysian scientists is fighting to preserve an area of stunning biodiversity.

By encouraging the adoption of innovative architectural design and energy-saving technologies, Singapore has emerged as a model of green building in Asia — an important development in a region that is urbanizing more rapidly than any other in the world.

India is planning to burn more of its trash to generate badly needed electricity. But as the case of a waste-to-energy plant in New Delhi shows, critics are worried about lax air pollution controls and the impact of incineration on people who eke out a living picking through waste dumps.

A shortage of "rare earth" metals, used in everything from electric car batteries to solar panels to wind turbines, is hampering the growth of renewable energy technologies. Researchers are now working to find alternatives to these critical elements or better ways to recycle them.

After three decades of unbridled economic growth and mounting ecological problems, China and its new leadership face a key challenge: cleaning up the dirty air, polluted water, and tainted food supplies that are fueling widespread discontent among the country’s burgeoning middle class.

Marine phytoplankton are vital in absorbing ever-increasing amounts of CO2 from the atmosphere. In a Yale Environment 360 interview, researcher Tracy Villareal explains how he is using remotely operated robots to better understand how this process mitigates climate change.

Recent studies in Asia and Australia found that community-managed areas can sometimes do better than traditional parks at preserving habitat and biodiversity. When it comes to conservation, maybe local people are not the problem, but the solution.

China is engaged in a push to build hydroelectric dams on a scale unprecedented in human history. While being touted for producing lower-emission electricity, these massive dam projects are wreaking havoc on river systems across China and Southeast Asia.

One year after Hurricane Sandy devastated parts of the U.S. East Coast, the government is spending billions to replenish beaches that will only be swallowed again by rising seas and future storms. It’s time to develop coastal policies that take into account new climate realities.

As Bangladesh makes a controversial turn to coal to produce electricity, the construction of a large coal-fired power plant is threatening the fragile ecosystem of the Sundarbans, the world’s largest mangrove forest.