Train derailments and chemical disasters could happen in any community — even yours.

The month’s best and worst environmental news, plus other stories, science and context you don’t want to miss.

This month saw some great successes for wildlife and the climate — all made possible by decades of action and perseverance.

Plus what Maine did right (and wrong), billionaires in space, and rebranding invasive species.

Experts say the new administration can jumpstart climate protections by taking on rising methane emissions, but it won’t be easy or quick.

The Trump presidency may finally be over, but the damage it did will persist and echo — even as President Biden takes rapid action to repair some of his predecessor’s environmental damage.

An agency insider looks at a history of failure and sees long-delayed opportunities for change and progress.

Climate change threatens many marine species, but some climate solutions pose risks, too. Researchers say offshore wind needs continued study and better regulations.

A presidential administration ready to tackle climate change may help — but it’s the years of planning that could really pay off.

Protections for endangered species, disaster assistance and conservation were all targets of the most recent round of attacks on the environment.