We mapped out where the drilling could take place — and how it overlaps with the critical habitats of the most sensitive species at risk.

BP’s mistakes, rooted in regulator failures, revealed “such systematic failures in risk management that they place in doubt the safety culture of the entire industry.”

Drilling in the refuge was tucked into in last month’s Republican tax bill, defying decades of attempts to protect this pristine wildnerness.

Stories about Bears Ears, sharks, vaquitas, an extinct bat and the Endangered Species Act resonated with our readers this year.

This month brings us several great new books for the dedicated environmentalists on your holiday shopping list.

Highly trained military dolphins have been dispatched to round up the last 30 vaquita porpoises and (hopefully) save the species from extinction.

Oil surveys in the Atlantic Ocean could harm marine life without benefiting the US economy.

Southern Resident killer whales have a shortage of food and an overdose of deadly pollutants.

This month brings new books about elephants, energy and an all-too-real mythic figure.

Oceanic plastic poses an increasing threat for these top predators.