A new model shows a tendency for tree cover to decline in warmer areas and increase in colder ones.
Northern Hemisphere
Posted inResearch Spotlights
Aerosols Could Be Weakening Summertime Circulation
Anthropogenic aerosol emissions may be a culprit behind weakening jet streams and weather systems in the Northern Hemisphere.
Posted inResearch Spotlights
Northern Permafrost Region Emits More Greenhouse Gases Than It Captures
Permafrost underlies a quarter of the Northern Hemisphere. A comprehensive analysis shows that the area may have shifted from a sink to a source of greenhouse gases, bringing a longtime prediction to fruition.
Posted inResearch Spotlights
Source or Sink? A Review of Permafrost’s Role in the Carbon Cycle
Understanding the role of permanently frozen soil, which covers a large portion of land in the Northern Hemisphere, is crucial to reaching global climate targets.
Posted inNews
Wisconsin Stalagmite Records North American Warming
A speleothem has revealed rapid periods of warming across the interior of the continent during the last glacial period, corresponding to similar events recorded in Greenland ice.
Posted inResearch Spotlights
Tree Ring Width Predicted by Machine Learning
When predicting a tree’s annual growth, consider the whole weather system and not just the sum of its parts.
Posted inResearch Spotlights
Munching Moose Cool Forest Floors
By making clear-cut forests patchier, moose create a reflective surface that bounces back sunlight and keeps temperatures down.
Posted inNews
Boreal Trees May Grow Faster Due to Climate Change
Enhanced tree growth could significantly offset carbon emissions, but some researchers say it’s not enough to compete with forest disturbances.
Posted inEditors' Highlights
Quantifying Changes in Midlatitude Subseasonal Prediction Skill
The differences between future and present subseasonal predictability in the Northern Hemisphere provided by the tropics are evaluated using neural networks.