An international team of researchers has found evidence in tree rings that backs up prior research suggesting tropical cyclones (typhoons in the east, hurricanes in the west) are migrating slowly ...

Like careful note-takers during the past 1,250 years, Engelmann spruce trees high in the Yellowstone National Park backcountry have left behind a record of how harsh summer temperatures have been. A ...

Here we have tree-ring samples from two trees that grew not too far from each other. Notice how the patterns for both are the same except that, for one, the rings are compressed, which shows that it ...

Email notifications are only sent once a day, and only if there are new matching items. Archaeologist Thomas Windes started taking tree-ring samples from very old buildings 35 years ago. That was at ...

KNOXVILLE, Tenn. — East Tennessee’s roller-coaster climate featured a range of record-setting droughts and downpours in recent years. When extreme floods or dry conditions set records, the official ...

Usage Restrictions The photo "Taking tree-ring samples on Mongolia's Khorgo lava field" may only be used to illustrate a story about the research described in the accompanying news release, "Droughts ...

The Bannister Building looks distinct among the typical red-brick buildings on campus, yet students walking by, preoccupied by their phones and classes, fail to notice the 40-foot-long steel columns ...

Last year, we wrote about a real climate science debate taking place between researchers who look at tree ring records of past climate. Penn State climate scientist Michael Mann, well-known for his ...

ASPEN, Colo. (AP) - Mike Cooperstein and Jason Konigsberg maneuvered a 6-foot long cross-cut saw with menacing teeth into position Tuesday on a hulking spruce trunk that was ripped out of the ground ...