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.
North America
Posted inEditors' Highlights
Remote Sensors See NO2 ‘Hot Spots’ from Offshore Oil Activity
Satellites can see NO2 pollution from space, but can they detect individual oil and natural gas operations, and are the measurements accurate?
Posted inEditors' Highlights
Rate of Temperature–Precipitation Scaling in Rainfall Events
Future extreme rain will be embedded in shorter, more convective dominant rainfall events in the northeastern region of North America, leading to larger rate in future temperature-precipitation scaling.
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.
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El derretimiento del hielo marino del océano Ártico potencia las mareas
Si el cambio climático anula el ciclo estacional de hielo y deshielo, se desencadenaría un ciclo de retroalimentación de derretimiento del hielo marino en algunas partes del Ártico canadiense.
Posted inEditors' Highlights
A Drier or Wetter Future for Southwestern North America?
Bhattacharya et al. present evidence that expansion of the North American Monsoon explains a wetter southwest in the mid-Pliocene and suggest this mechanism can explain current monsoon variations.
Posted inFeatures
Last Tree Standing
Refugia repopulate forests after fires, but climate change is making these woodlands increasingly unpredictable.
Posted inNews
Monitoring Moisture from Afar
Undisturbed tropical rain forests are experiencing more frequent droughts, but the ecosystems are isolated and difficult to assess. Scientists are using remote sensing to expand the depth and scope of monitoring efforts.
Posted inFeatures
Incredible Journeys on the Crown of the Continent
Living in Geologic Time: The making, breaking, and backpacking of North America’s Continental Divide.
Posted inEditors' Highlights
What Caused the Open Habitat Transition in the West-Central U.S.?
Between 26-15 My ago, forests covering west-central North America gave way to open, grassy habitats. Now, oxygen isotope records suggest this shift is owed to drier winters and increased aridity.