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.
seasonal variability
Posted inResearch Spotlights
Road Salts Linked to High Sodium Levels in Tap Water
Use of deicing agents may sometimes raise sodium levels in drinking water beyond healthy limits for people on salt-restricted diets.
Posted inResearch Spotlights
The Seasonality of Oceanic Carbon Cycling
Scientists uncovered how seasonal changes affect the amount and rate of carbon as it moves from the ocean’s surface to its depths.
Posted inEditors' Highlights
The Flowers that Bloom in the Spring (but Later)
Mismatch between the pace of climate change and crop phenology may signal a new challenge for climate change adaptation.
Posted inEditors' Highlights
Export of Different Carbon Types from a Boreal Catchment
Carbon export in boreal catchments depends on the landscape setting and differs for snowmelt and rainfall events.
Posted inNews
Summer Could Be Earthquake Season on Mars
InSight data hint that shifting carbon dioxide ice loads, illumination changes, or solar tides could drive an uptick in marsquakes during northern summer—a “marsquake season.”
Posted inEditors' Highlights
Reduced Winter PM2.5 in Northern India Under Global Warming
Global warming is projected to alleviate PM2.5 pollution in Delhi by decreasing pollution-favorable weather days and increasing clean-favorable weather days.
Posted inEditors' Highlights
Seasonality in Saharan Dust Across the Atlantic Ocean
The first time series of bi-weekly dust concentrations measured in-situ across the remote Atlantic Ocean.
Posted inFeatures
Better Subseasonal-to-Seasonal Forecasts for Water Management
Emerging methods that improve precipitation forecasting over weeks to months could support more informed resource management and increase lead times for responding to droughts and floods.
Posted inNews
Your Summer Outlook: Cloudy with an Above-Normal Chance of Hurricanes
Get ready for another above-average hurricane season, but it likely won’t be as busy as last year.