For four decades, Amory Lovins has been a leading proponent of a renewable power revolution that would wean the U.S. off fossil fuels and usher in an era of energy independence. In an interview with Yale Environment 360, he talks about his latest book, which describes his vision of how the world can attain a green energy future by 2050.

The long-held contention that rural forest communities are the prime culprits in tropical forest destruction is increasingly being discredited, as evidence mounts that the best way to protect rainforests is to involve local residents in sustainable management.

With advances in a technique known as fast-track breeding, researchers are developing crops that can produce more and healthier food and can adapt and thrive as the climate shifts.

For two decades, TRAFFIC’s Tom Milliken has tracked the illicit ivory trade that has led to the continued slaughter of Africa’s elephants. In an interview with Yale Environment 360, Milliken talks about the recent increase in ivory seizures and the criminal gangs that supply Asia’s black market for ivory.

More than a billion people worldwide lack access to electricity. The best way to bring it to them — while reducing greenhouse gas emissions — is to launch a global initiative to provide solar panels and other forms of distributed renewable power to poor villages and neighborhoods.

Geographer Edward Carr has worked extensively in sub-Saharan Africa, where climate change and other environmental threats present a growing challenge. In an interview with Yale Environment 360, Carr talks about why any outside aid to the developing world must build on the inherent capability of the local residents.

One idea promoted at the Durban talks was “climate-smart agriculture,\" which could make crops less vulnerable to heat and drought and turn depleted soils into carbon sinks. The World Bank and African leaders are backing this new approach, but some critics are skeptical that it will benefit small-scale African farmers.

Scientists have recently begun to understand the vital role played by top predators in ecosystems and the profound impacts that occur when those predators are wiped out. Now, researchers are citing new evidence that shows the importance of lions, wolves, sharks, and other creatures at the top of the food chain.

As global agricultural companies turn to Africa, a U.S. firm is planning a massive oil palm plantation in Cameroon that it says will benefit local villagers. But critics argue that the project would destroy some of the key remaining forests in the West African nation and threaten species-rich reserves.

The contentious practice of hydrofracking to extract underground natural gas has now made its way to South Africa’s Karoo, a semi-desert known for its stark beauty and indigenous plants. But opposition is growing amid concern that fracking will deplete and pollute the area’s scarce water supplies.

Phosphate has been essential to feeding the world since the Green Revolution, but its excessive use as a fertilizer has led to widespread pollution and eutrophication. Now, many of the world’s remaining reserves are starting to be depleted.

With ever-greater quantities of seafood coming from aquaculture operations, some companies are working on ways to reduce the environmental impact of fish farming. In an interview with Yale Environment 360, Josh Goldman of Australis Aquaculture talks about his highly praised closed-containment fish farm in Massachusetts.

Paula Kahumbu runs a conservation organization with a distinctly 21st-century mission: Posting field blogs from conservationists to attract global support for wildlife protection. In an interview with Yale Environment 360, Kahumbu talks about her group’s triumphs and struggles as it battles to preserve Africa’s magnificent animals.

A decade after a brutal civil war, the West African nation of Liberia has partnered with the European Union on a novel system for protecting its remaining forests — marking every harvestable tree so it can be traced to its final destination. But given Liberia’s history of conflict and corruption, will it work?

Shortly after gaining independence in 1990, Namibia turned ownership of its wildlife back to the people. By using a system of community-based management, this southern African nation has avoided the fate of most others on the continent and registered a sharp increase in its key wildlife populations.

For three decades, Raoul du Toit has led the fight to protect black rhinos in Zimbabwe, a struggle that earned him a Goldman Environmental Prize this week. In an interview with Yale Environment 360, he talks about the challenge of saving this iconic African animal in the face of his country’s economic collapse and a new wave of poaching.

With giant tortoises, elephants, and other fruit-eating animals disappearing from many of the world’s tropical woodlands, forests are suffering from the loss of a key function performed by these creatures: the dispersal of tree seeds. But a new experiment shows that introduced species may be able to fulfill this vital ecological role.

The Ethiopian region of Gambella is home to Africa’s second-largest mammal migration, with more than a million endangered antelope and other animals moving through its grasslands. But the government has now leased vast tracts to foreign agribusinesses who are planning huge farms on land designated a national park.

For decades, deadly outbreaks of cholera were attributed to the spread of disease through poor sanitation. But recent research demonstrates how closely cholera is tied to environmental and hydrological factors and to weather patterns — all of which may lead to more frequent cholera outbreaks as the world warms.

The inland Niger delta of Mali is a unique wetland ecosystem that supports a million farmers, fishermen, and herders and a rich diversity of wildlife. But now, the country’s president and Libyan leader Moammar Gaddafi have begun a major agricultural project that will divert much of the river’s water and put the delta’s future at risk.