"Researchers with an environmental group have labeled as “disturbingly low” the number of western monarch butterflies that migrate along the California coast."

"President Donald Trump says he doubts humans have much of a role in climate change. His administration has downplayed the science of climate change and sought to silence scientists working for the federal government. In this hour, Reveal’s Elizabeth Shogren details the pressures one researcher faced as she worked on a project for the National Park Service."

"The partial U.S. government shutdown has docked fishing boats in Alaska, delayed public meetings on a proposed wind farm off the Massachusetts coast and blocked pharmaceutical companies from seeking approval for new drugs. But the Trump administration is working overtime to make sure the shutdown doesn’t halt oil drilling too -- in ways critics say may flout federal law."

"The U.S. Supreme Court on Monday declined to take up ExxonMobil's latest attempt to block Massachusetts' investigation into whether the oil giant misled the public and investors about climate change."

"Democrats in Congress are demanding answers about a plan by the Trump administration to use visitor fees toward the operation of popular national parks during the partial government shutdown, claiming that the move could be illegal."

"A federal judge has ordered the Environmental Protection Agency to release tens of thousands of emails and other documents involving the agency’s top-level political appointees — including acting chief Andrew Wheeler — in a move activists hope will clarify how industry interests may be influencing their decisions."

"America’s carbon dioxide emissions rose by 3.4 percent in 2018, the biggest increase in eight years, according to a preliminary estimate published Tuesday."

"The ancient, sustainable practice of pasturing animals among trees is gaining traction in the U.S. If it scales up, it could help shrink our carbon footprint."