With refreezing in the western Arctic Ocean shifting later into the autumn, field research on changing air-ocean-ice interactions suggests that the Arctic is shifting to a more seasonal system.
Climate Change
Posted inFeatures
What Specific Costs and Risks Do We Face from Climate Change?
A new U.S. government report finds that climate change is already increasing risks to health, the economy, and ecosystems across the United States. These risks are expected to grow in the coming decades.
Posted inResearch Spotlights
Satellite Observations Validate Stratosphere Temperature Models
Since the 1970s, the stratosphere has cooled as ozone levels dropped and carbon dioxide levels increased. Chemical models of the temperature decline conflicted with satellite observations—until now.
Posted inResearch Spotlights
Greenhouse Gas Inventories Underestimate Methane Emissions
A new study in the Baltimore-Washington metropolitan area reveals prior estimates may significantly underrepresent methane emissions, particularly from landfills and natural gas systems.
Posted inEditors' Vox
Atmospheric Aerosol in the Changing Arctic
Warming and sea ice loss in the Arctic are affecting the complex interactions between the atmosphere, ocean, land, and ice-covered areas, including the formation and transport of aerosol.
Posted inNews
Atacama Desert’s Unprecedented Rains Are Lethal to Microbes
Rainfall in the driest parts of Chile’s Atacama Desert in 2017 resulted in hypersaline lagoons that killed the majority of microbes adapted to millions of years of arid conditions.
Posted inFeatures
Why Is the Gulf of Maine Warming Faster Than 99% of the Ocean?
The Gulf of Maine’s location at the meeting point of two major currents, as well as its shallow depth and shape, makes it especially susceptible to warming.
Posted inAGU News
Ban-Weiss, Chakrabarty, and Guan Receive 2018 Global Environmental Change Early Career Award
George Ban-Weiss, Rajan Chakrabarty, and Kaiyu Guan will receive the Global Environmental Change Early Career Award at AGU’s Fall Meeting 2018, to be held 10–14 December in Washington, D. C. The award recognizes an early-career scientist “for outstanding contributions in research, educational, or societal impacts in the area of global environmental change, especially through interdisciplinary approach.”
Posted inNews
Election Results Offer Hope for Climate Action
The Democrats’ control of the House of Representatives promises to provide checks and balances on the Trump administration, environmental leaders say.
Posted inResearch Spotlights
Volcano in Iceland Is One of the Largest Sources of Volcanic CO2
High-precision airborne measurements, in combination with atmospheric modeling, suggest that the Katla subglacial caldera may be one of the planet’s biggest sources of volcanic carbon dioxide.