The Northern Hemisphere is absorbing more sunlight than the Southern Hemisphere, and clouds can no longer keep the balance.
Northern Hemisphere
Boreal Forests May Be on the Move
A new model shows a tendency for tree cover to decline in warmer areas and increase in colder ones.
Aerosols Could Be Weakening Summertime Circulation
Anthropogenic aerosol emissions may be a culprit behind weakening jet streams and weather systems in the Northern Hemisphere.
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.
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.
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.
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.
Munching Moose Cool Forest Floors
By making clear-cut forests patchier, moose create a reflective surface that bounces back sunlight and keeps temperatures down.
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.
