Environment

A newly discovered infestation of the invasive water weed elodea in a busy Anchorage seaplane base has prompted a speedier than normal response, with eradication efforts to begin Friday.

Yereth Rosen
State geologists studying a 450-square-mile area of the Talkeetna Mountains last year turned up previously undiscovered -- but long inactive -- faults near the proposed Susitna River dam.Zaz Hollander
A big barge is headed to Kodiak as part of what officials are calling an unprecedented cleanup of Alaska shorelines to remove hundreds of tons of debris, much of it from the 2011 Japanese tsunami.Lisa Demer
A Royal Dutch Shell icebreaker that was the target of environmental protesters is leaving Portland, Oregon, bound for an Arctic drilling operation.Steven DuBois and Dan Joling | Associated Press
The 9th U.S. Circuit Court of Appeals decided Wednesday to keep roads out of roadless areas of Tongass National Forest, over the objections of the state and timber industry. Pat Forgey
The voluntary guidelines issued Wednesday aim to protect harbor seals resting on floating ice in Alaska's much-visited glacial fjords.Yereth Rosen
The earthquake felt across Southcentral Alaska and into the Interior was unlike any to hit Cook Inlet in decades, the Alaska Earthquake Center said Wednesday. Laurel Andrews
The initial investigation of the incident that put a gash in the Finnish icebreaker hired by Shell suggests -- but does not conclude -- that a previously uncharted Unalaska Bay shoal was to blame.Yereth Rosen
Better Alaska mapping, more understanding of mineral resources, more study of the effects of thawing permafrost and more help to Arctic communities coping with crumbling coastlines and vulnerable infrastructure are among the tasks that the U.S. Geological Survey plans in its newly released five-year Arctic strategy.Alaska Dispatch News
A scientist says researchers may never solve the recent deaths of 18 endangered whales whose carcasses were found floating off Kodiak Island.Rachel D'Oro | Associated Press