Tree-ring width and density increased dramatically about 100 years ago
By Summit Voice
SUMMIT COUNTY — Forests at the edge of Alaska’s tundra have put on a growth spurt in the past hundred years, and especially since about 1950, according to researchers with Columbia University’s LaMont-Doherty Earth Observatory.
The scientists recently completed a detailed tree-ring study dating back to 1067. The results suggest that at least some forests may be adapting the rapidly warming climate in the Arctic. Global temperatures have climbed about 1.6 degrees since the 1950s, but some parts of northern latitudes have climbed about 4 to 5 degrees during that same span.
“For the moment, warmer temperatures are helping the trees along the tundra,” said study coauthor Kevin Anchukaitis, a tree-ring scientist at Lamont. “It’s a fairly wet, fairly cool, site overall, so those longer growing seasons allow the trees to grow more.” (more…)
Filed under: climate and weather, Environment, forests, global warming, Summit County news | Tagged: Alaska, Arctic National Wildlife Refuge, Arctic tundra, climate change, Columbia University, Dendrochronology, Environment, forests, global warming, Summit County News | 1 Comment »