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Powerful autumn storms have sent surges of seawater as far as 20 miles inland onto the tundra of southwestern Alaska -- and such flooding is expected to become more frequent as the climate changes, a new study says.

Yereth Rosen
The area that would become Anchorage and the rest of Southcentral, Southeast, and the Alaska Peninsula were under ice, but Interior Alaska was green.Ned Rozell
Why is it a 6.2-magnitude earthquake that would have killed people in other countries just rattled Alaskans on Thursday? The state's top earthquake scientist has a sobering answer.Zaz Hollander
The moss, so obscure it has no common name, has been found in only one other North American site -- in Canada’s Yukon Territory -- and is also known to grow in Greenland and Scandinavia.Yereth Rosen
A sophisticated earthquake detector being installed in the Interior Alaska community of Minto is part of a plan to carpet the state with such instruments every 50 miles, from the Alaska Peninsula to Barrow.Ned Rozell
Sensing shorter periods of daylight, trees have quit refreshing their leaves with chlorophyll, the green pigment that helps capture the sun's energy and allows the tree to convert it to the sugars that make it taller and bushier.Ned Rozell
Mount Cleveland is so remote -- an 18-hour boat trip from Dutch Harbor -- that Alaska scientists have been unable to station scientific gear on the volcano. Until now.Sean Doogan
Leffingwell made 31 trips around the area by sled and small boat, covered about 4,500 miles, and camped in a tent “about 380 times.” This detail he included in a 250-page report for the USGS that reads like a manual on how to live and perform science in the far north.Ned Rozell
North Slope ravens have forced one researcher to go incognito so she can get closer to the birds to determine why they live in such a harsh climate. Ned Rozell

The darkening skies of fall in northern latitudes boost our opportunities to see stars, northern lights and spectacular sunsets.