NYTimes - Environment

A lawsuit by a creationist geologist brings to light a dispute between science and religion at Grand Canyon National Park.

Tips on how to be an ecotourist.

Some advocates of global climate action think the pact would be stronger if the United States simply left, rather than remaining in and demanding big changes.

The president’s proposed reductions to the department’s research may have a greater impact on climate change than the Paris accord decision.

Noel Patterson educates guests at the Miraval Resort & Spa in Tucson on the importance of bees, leads tastings and encourages backyard hives.

The spending plan also calls for raising billions of dollars by opening up public lands to oil and gas drilling and selling oil from the Strategic Petroleum Reserve.

For decades, scientists have warned of mounting evidence that exposure to chlorpyrifos may threaten children’s development.

Forty years ago, feline hyperthyroidism was virtually nonexistent. Now it’s an epidemic — and some scientists think a class of everyday chemicals might be to blame.

Surrounding myself with animals to feel less alone was a mistake: The greatest comfort is in knowing their lives are not about us at all.

A mutation in some obesity-prone dog breeds might reveal new risk factors for obesity in humans — and perhaps give rise to new drugs.

The catastrophe set off an unexpected shortage of iodine, leaving children in faraway countries vulnerable to cognitive deficits.

Photos taken by a French astronaut sparked a discussion about their beauty — and also raised questions about energy use.

At a meeting of the Arctic Council, the secretary of state was noncommittal when asked about the administration’s view on the landmark climate agreement.

A series of experimental “mesocosms” in Australia show that a warming world will have unexpected effects on marine ecosystems.

Senators voted 51 to 49 to block a measure that would have undone a regulation to control the release of methane from oil and gas wells on public land.

The announcement encouraged advocates of the landmark accord, who hope that President Trump’s fellow heads of state can pressure him to remain in the pact.

With the Trump administration still undecided about the Paris climate accord, Secretary of State Rex W. Tillerson is to head to a meeting of the Arctic Council in Alaska.

The Paris accord provides its members with more flexibility than the earlier Kyoto Protocol, an argument for those who want the United States to remain in the deal.

Researchers focused on warmer weather that keeps the tundra from freezing until later, allowing processes that release carbon dioxide to continue longer.

Politics intruded on climate science in Australia. The scientists fought back, led by John Church, a leading world expert on sea level rise.