With the COP30 U.N. climate talks starting this week in Brazil, in the heart of the Amazon River basin, our Issue Backgrounder points out that now is a critical time to consider a central question: Is the mandate to save the immense Amazon rainforest as a way to combat climate change being irretrievably undermined by the vast, destructive forces bringing about the rainforest’s rapid destruction?

When the Trump Energy Department issued a report this summer questioning a central precept of U.S. climate change policy, it kicked off an angry backlash from scientific experts who fear it undermines decades of peer-reviewed research — and the very basis for climate action. Backgrounder scrutinizes the DOE report and the climate skeptics behind it, as well as the furious response.

Just under two months from the start of the annual global forum for managing climate change — the United Nations’ conference of parties beginning Nov. 10 in Belém, Brazil — our Backgrounder analysis laments the vanishingly small chance that nations will agree on managing steadily rising greenhouse gas emissions. A look at the obstacles, plus COP30 reporting challenges, from hotel expenses to diplomatic spin.

The United States has nearly 100,000 miles of coastline and much of it is at risk of flooding. But what that inundation looks like varies widely from place to place. From storm surges to land subsidence, the latest Backgrounder details the different types of flooding and the threats they pose to coastal communities, especially sea level cities.

Wildfire’s immensely destructive power is not just about what it burns. The smoke from more frequent fires, too, has real potential to harm human health, the new Backgrounder explains, releasing particulate matter, carbon monoxide, nitrogen oxides, sulfur oxides and worse. Learn more about the hazards and historical perspective, along with what journalists should tell their communities can be done.

It’s not just scientists who are being lost to the new administration’s extensive firings of federal workers. A Backgrounder Analysis argues it’s the science itself. It’s happening at the U.S. Environmental Protection Agency, but also across agencies that conduct research to protect health and the environment, whether around toxic chemicals or on the battleground of climate change science. A frank look at the reality and what’s being lost for journalists and the communities they serve.

The judiciary is looking to become a major environmental battleground for journalists to watch in the coming months and years, as activists confront the Trump administration over its deregulatory campaign. The new Issue Backgrounder maps out the action, explaining how key laws foster citizen suits, while numerous nonprofits are staffed up to sue. Plus, some ways to track the action.

As trade wars loom with U.S. allies, including our neighbors to the north and south, another kind of long-standing relationship is under threat — the environmental partnership between the United States and Canada. A Backgrounder Analysis examines deep-rooted ties over energy, water and timber. Does the brewing conflict over trade mean the long bonds over the environment have been broken?

‘Energy dominance’ is a Trump catchphrase whose meaning may be vague — since the U.S. is already the world’s top producer of oil and natural gas. But one thing that does seem clear, per the new Backgrounder, is that a flood of new U.S. permits to export gas will likely mean higher energy prices for U.S. customers.

Anti-science policies are being instituted by the Trump administration at the U.S. Environmental Protection Agency and other federal offices, reports the latest Backgrounder. That makes it especially challenging to keep politics out of decision-making around everything from natural disasters to public health. An examination of scientific integrity under Trump 2.0 and what environmental journalists should watch for.