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.
Northern Hemisphere
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.
Posted inResearch Spotlights
Models Oversimplify How Melting Glaciers Deform Land
When glaciers melt, the land below deforms. Sea level data show that widely used models oversimplify the process.
Posted inEditors' Highlights
New Insights on Stratospheric Circulation from Fluorine Tracers
Stratospheric fluorine species have accumulated faster in the Northern Hemisphere over the past two decades reflecting interhemispheric differences in the Brewer-Dobson transport circulation.
Posted inEditors' Highlights
Is Earth’s Albedo Symmetric Between the Hemispheres?
The two hemispheres feature the same planetary albedo despite a larger land fraction in the north, because storms over the southern ocean are cloudier than their northern counterparts.
Posted inEditors' Highlights
High Climatic Response of High-Latitude Forests
The seasonal amplitude of atmospheric CO2 is increasing, partly due to boreal forest responses to warming. Photosynthesis and expansion of boreal forests are shown here to be temperature-limited.