President Barack Obama’s policies for Alaska are embedded in a variety of documents: executive orders, memoranda, agency action and formal rules. Some can be undone with the stroke of a pen.

Consider the Pebble Mine, a massive project proposed for southwest Alaska that opponents say is a threat to the salmon runs of Bristol Bay.

A new study on reclaimed drill sites at the Pebble mine in Southwest Alaska says it is evident that there may be long-term reclamation and maintenance issues at the exploration site of copper, gold and molybdenum prospect.

A new study examining efforts by Pebble mine developers to reclaim land disturbed by years of exploration work finds deficiencies by both the operator and the state agency that oversees mining.

An international group voted in favor of protecting Bristol Bay from large-scale mining earlier this month.

The International Union for the Conservation of Nature Global Congress passed a resolution on Aug. 31 that calls for protections for Bristol Bay.