For Alaska Native communities along the Yukon River, fishing for salmon has always been a central part of life. But climate change is driving a massive collapse in salmon populations.
The next big phase of the Klamath River Dam removal started this week. It's the largest dam removal in U.S. history and is expected to last through 2024.
The destruction of four dams on the lower Klamath river will open up hundreds of miles of salmon habitat. U.S. regulators approved the plan Thursday in a unanimous vote.
Washington's orcas are hungry, because there aren't enough salmon for them to eat. State officials want to take out some dams to help them, but that would hurt Washington's wheat farmers.
Biologists think gulls are eating more juvenile salmon than they thought, and fish advocates are proposing to kill problem gulls. But opponents say dam modification is what's needed to protect salmon.
The growth of the country's farmed salmon sector has reached such a critical point that, if not addressed, may cause "irrecoverable damage to the environment," a government report says.
Warming oceans and development threaten the West Coast's wild salmon. So activists started a traveling celebration to draw attention to the plight of the sockeye in Canada's Fraser River.
Many consumers don't yet understand the label, but grocery stores are now buying from "salmon-safe" farms, which help protect fish by banning pesticides and keeping manure out of the land's waterways.