Researchers probe millennia-old deep-ocean sponges for links between ocean nutrients and climate.
Climate Change
Posted inOpinions
Climate Models Are Uncertain, but We Can Do Something About It
Model simulations of many climate phenomena remain highly uncertain despite scientific advances and huge amounts of data. Scientists must do more to tackle model uncertainty head-on.
Posted inEditors' Highlights
Tracking Deep-Earth Processes from Rapid Topographic Changes
Rapid elevation-rise in Turkey, tracked by marine sediments that now sit at 1.5 km in elevation, is linked to deep-Earth processes that can explain short-lived, extreme rates of topographic change.
Posted inResearch Spotlights
Shedding Light on the Southern Ocean Carbon Sink
One of the world’s largest carbon sinks is still poorly understood.
Posted inNews
Ozone Pollution Maps Show Spikes Amid Broad Declines
Exceptionally comprehensive new maps detail current global concentrations and 15-year trends.
Posted inScience Updates
U.S. and China Assess Ecosystem Effects of a Fading Cryosphere
Impacts of a Changing Cryosphere on Lakes and Streams in Mountain Regions: US-China Collaborative Workshop at Qinghai Lake; Qinghai, China, 21–27 August 2017
Posted inResearch Spotlights
Medieval Temperature Trends in Africa and Arabia
A synthesis of paleotemperature reconstructions from published case studies suggests warm onshore temperatures persisted across most of Afro-Arabia between 1000 and 1200 CE.
Posted inResearch Spotlights
Incorporating Physical Processes into Sea Level Projections
Including the effects of physical mechanisms that can quickly increase ice sheet discharge significantly raises sea level rise projections under high-emission scenarios.
Posted inResearch Spotlights
First Near-Global Measurements of Isotopic Nitrous Oxide
By harnessing satellite data collected from low-Earth orbit, scientists can now track the distribution of atmospheric nitrous oxide and its isotopes.
Posted inResearch Spotlights
Critical Role of Grazing Animals in an Ecosystem
Scientists model the effect of horses, cattle, sheep, and goats on local environments and global climate.