The second-place winner of the Yale Environment 360 Video Contest examines the legacy of pollution in Anniston, Alabama, the former home of a Monsanto chemical factory. Produced by Spenser Gabin, the video tells the story of how PCBs from the Monsanto plant contaminated the town’s waterways and continue to taint the fish that are popular with local anglers.

Some scientists and analysts are touting carbon capture and storage as a necessary tool for avoiding catastrophic climate change. But critics of the technology regard it as simply another way of perpetuating a reliance on fossil fuels.

Ecologist Wendy Palen was one of a group of scientists who recently called for a moratorium on new development of Alberta’s tar sands. In a Yale Environment 360 interview, she talks about why Canada and the U.S. need to reconsider the tar sands as part of a long-term energy policy.

"Badru’s Story," which documents the work of researchers in Uganda’s Bwindi Impenetrable National Park, is the first-place winner of the Yale Environment 360 Video Contest. Filmmakers Benjamin Drummond and Sara Joy Steele trek along with scientist Badru Mugerwa and his team as they monitor the impact of climate change on one of Africa’s most diverse forests and its extraordinary wildlife.

This September 1 marks the 100th anniversary of the death of Martha, the last known passenger pigeon on earth. The extinction of this once-abundant North American bird still stands as a cautionary tale.

Conflicts over water have long haunted the Middle East. Yet in the current fighting in Iraq, the major dams on the Tigris and Euphrates rivers are seen not just as strategic targets but as powerful weapons of war.

Lian Pin Koh believes drones can be a key part of conservation efforts, particularly in remote regions. In a Yale Environment 360 interview, he talks about how his project, ConservationDrones, is promoting the use of drones for everything from counting orangutans to stopping poaching.

Hydraulic fracturing is about to move into the Canadian Arctic, with companies exploring the region's rich shale oil deposits. But many indigenous people and conservationists have serious concerns about the impact of fracking in more fragile northern environments.

As president of the Humane Society of the United States, Wayne Pacelle has pushed the animal welfare group into areas that directly impact the environment. In an interview with Yale Environment 360, he talks about how what we eat, how we raise our food, and how we treat farm animals are basic conservation issues.

Chinese officials are only starting to come to grips with the severity and extent of the soil pollution that has contaminated vast areas of the nation’s farm fields — by one estimate more than 8 percent of China’s arable land. But one thing is already clear: The cost and complexity of any remediation efforts will be enormous.

Three decades of rapid economic development in China has left a troubling legacy widespread soil pollution that has contaminated food crops and jeopardized public health. Although they once labeled soil data a “state secret,” Chinese officials are slowly beginning to acknowledge this grave problem.
The first in a series.

The coal industry has achieved stunning growth in the last decade, largely due to increased demand in China. But big changes in China’s economy and its policies are expected to put an end to coal’s big boom.

The sweeping nature of President Obama’s proposed regulations limiting carbon dioxide emissions from coal-fired power plants is likely to open his initiative to serious legal challenges. To date, however, the courts have given the federal government wide latitude in regulating CO2 under the Clean Air Act.

Scientists in the U.S. and elsewhere are conducting intensive experiments to cross hardy weeds with food crops such as rice and wheat. Their goal is to make these staples more resilient as higher temperatures, drought, and elevated CO2 levels pose new threats to the world’s food supply.

Desalination has long been associated with one process — turning seawater into drinking water. But a host of new technologies are being developed that not only are improving traditional desalination but opening up new frontiers in reusing everything from agricultural water to industrial effluent.

While Germany continues to expand solar and wind power, the government’s decision to phase out nuclear energy means it must now rely heavily on the dirtiest form of coal, lignite, to generate electricity. The result is that after two decades of progress, the country’s CO2 emissions are rising.

Dairy operations in the U.S. are consolidating, with ever-larger numbers of cows concentrated on single farms. In states like Wisconsin, opposition to some large operations is growing after manure spills and improper handling of waste have contaminated waterways and aquifers.

For two decades, Jack Macy has spearheaded San Francisco’s efforts to become a global leader in recycling. In an interview with Yale Environment 360, he talks about how San Francisco has engaged the public in a recycling crusade that has resulted in the city reusing or composting 80 percent of its garbage.

The international community should stop chasing the chimera of a binding treaty to limit CO2 emissions. Instead, it should pursue an approach that encourages countries to engage in a “race to the top” in low-carbon energy solutions.

Brown pelicans were removed from the U.S. Endangered Species List in 2009, in what was considered a major conservation success story. But a recent crash in Pacific Coast populations of sardines, the pelican’s prime food, is posing new threats to these oddly elegant birds.

Originating in Europe, \"nature-like\" fishways are now being constructed on some U.S. rivers where removing dams is not an option. Unlike traditional fish ladders, these passages use a natural approach aimed at significantly increasing once-abundant runs of migratory fish.