Prime Minister Stephen Harper’s government has been weakening Canada’s environmental regulations and slashing funds for oversight and research — all while promoting aggressive resource development. Critics warn these unprecedented actions pose a major threat to the nation’s vast natural heritage.

The designer of the Vietnam Veterans Memorial is now focused on the mass extinction of species, a threat she is highlighting on an interactive Web site. In an interview with Yale Environment 360, Maya Lin talks about her “What is Missing” project, which she calls her “last memorial.”

When Silent Spring was published in 1962, author Rachel Carson was subjected to vicious personal assaults that had nothing do with the science or the merits of pesticide use. Those attacks find a troubling parallel today in the campaigns against climate scientists who point to evidence of a rapidly warming world.

At the Rio+20 conference this week, conservation biologist Thomas Lovejoy received the prestigious Blue Planet Prize. Before traveling to Brazil, Lovejoy talked with Yale Environment 360 about the loss of biodiversity and about whether it is too late for the world to do something about it.

The North Carolina Senate has approved legislation that would prohibit the state from considering projected sea level increases in its coastal management strategy. But a scientist involved in the debate argues that ignoring these projections will wind up costing North Carolina — and the rest of the U.S. — far more.

One of the last free-flowing rivers in Colorado, the Crystal is now threatened by two proposed dam projects that would transform its rushing waters. In a Yale Environment 360 video, filmmaker Pete McBride, who grew up along the river’s banks, captures the breathtaking beauty of the Crystal and shows why it should remain wild and free.

Few international figures have been as consistent in warning about the threat posed by global warming as economist Fatih Birol, of the International Energy Agency. In an interview with Yale Environment 360, Birol explains why the situation is worsening and what needs to be done to significantly slow emissions.

With great fanfare, the United Nations announced in March that the world had reduced by half the proportion of people drinking unsafe water, meeting a critical development goal five years ahead of schedule. But a closer look reveals that the facts simply do not support this claim.

A planned carbon capture and storage plant in West Texas is being billed as the “cleanest coal plant in the world.” But can the $3 billion project help move the global power industry toward the elusive goal of low-carbon electricity, or is it just another way of perpetuating fossil fuels?

The regime of President Robert Mugabe has been accused of profiting from the Marange diamond fields in eastern Zimbabwe, garnering illicit funds that could be used to bolster his oppressive security forces. Now critics are alleging the government is failing to stop mining-waste pollution that is sickening livestock and local villagers.

National security expert Michael Klare believes the struggle for the world’s resources will be one of the defining political and environmental realities of the 21st century. In an interview with Yale Environment 360, he discusses the threat this scramble poses to the natural world and what can be done to sustainably meet the resource challenge.

The Clean Water Act of 1972, one of the boldest environmental laws ever enacted, turns 40 this year, with an impressive record of cleaning up America's waterways. But from New York Harbor to Alaska’s Bristol Bay, key challenges remain.

A new study from a Pacific atoll reveals the links between native trees, bird guano, and the giant manta rays that live off the coast. In unraveling this intricate web, the researchers point to the often little-understood interconnectedness between terrestrial and marine ecosystems.

Paul Anastas pioneered the concept of green chemistry and has led the effort to rethink the way we design and make the products we use. In an interview with Yale Environment 360, he talks about the challenges of bringing this approach to policy making and the frustrations of tackling environmental issues in a politically polarized era.

With melting sea ice opening up previously inaccessible parts of the Arctic Ocean, the fishing industry sees a potential bonanza. But some scientists and government officials have begun calling for a moratorium on fishing in the region until the true state of the Arctic fishery is assessed.

The vast amount of glass in skyscrapers and office buildings represents enormous potential for an emerging technology that turns windows into solar panels. But major questions remain as to whether solar windows can be sufficiently inexpensive and efficient to be widely adopted.

After a decade seeking approval to build the U.S.’s first offshore wind farm, Cape Wind president Jim Gordon is on the verge of beginning construction. In an interview with Yale Environment 360, he describes why his struggle has been good for clean energy — and why the fight is still not over.

In its quest to find new sources of energy, China is increasingly looking to its western provinces. But the nation’s push to develop fossil fuel and alternative sources has so far ignored a basic fact — western China simply lacks the water resources needed to support major new energy development.

Ikal Angelei is helping lead a campaign to stop construction of a major dam in Ethiopia that threatens the water supply and way of life of tens of thousands of indigenous people. In an interview with Yale Environment 360, she explains what she believes is at stake in the fight against the Gibe III dam.

If the damages related to climate change mount in the coming decades, insurance companies may face the prospect of paying larger disaster claims and being dragged into global warming lawsuits. But many firms, especially in the U.S., have barely begun to confront the risks.

With soaring human populations and rapid climate change putting unprecedented pressure on species, conservationists must look to innovative strategies — from creating migratory corridors to preserving biodiversity hotspots — if we are to prevent countless animals and plants from heading to extinction.