Jim O'Connor is a research geologist with the United States Geological Survey ( USGS ). He joins the exchange to discuss the impact of climate change in Oregon across a 100-year timeline capture in photographs from then and now. " A Changing Landscape " is a new exhibit at the Oregon Historical Society.

A trio of skiers is likely buried under an avalanche near Anchorage, Alaska, that occurred Tuesday afternoon, but dangerous backcountry conditions have so far stymied recovery operations, officials announced.

They were likely killed under the weight of snow nearly as deep as a 10-story building, Alaska State Troopers said Wednesday.

Alaska State Troopers say three skiers who had flown by helicopter to a remote mountain range were swept away by an avalanche and likely killed under the weight of dozens of feet of snow

From September to October last fall, Mount Adams saw several earthquakes. They weren't any larger than a 2.0, but now researchers are installing more monitors.