Aerosol pollutants are on the decline—and so are their effects.
Climate Change
Posted inResearch Spotlights
Changing Patterns in U.S. Air Quality
Over the northeast United States, ground-level ozone will peak in the winter rather than the summer thanks to continued reductions of regional nitrogen oxide emissions from smokestacks and tailpipes.
Posted inNews
Volcanic Eruptions Steer Conversations on Climate Intervention
Studies of volcanoes, Earth's natural climate coolers, cause scientists to question the merits of methods that intend to slow down climate change by injecting the stratosphere with aerosols.
Posted inResearch Spotlights
Caterpillar-Like Motion of the Greenland Ice Sheet
New measurements made in Greenland’s ice sheet show ice deformation in a caterpillar-like flow.
Posted inScience Updates
Investigating Climate Change from the Stratosphere to Space
8th Workshop on Long-Term Changes and Trends in the Atmosphere;
Cambridge, United Kingdom, 28–31 July 2014
Posted inScience Updates
Counting the Ocean's Greenhouse Gas Emissions
A new database seeks to improve estimates of oceanic emissions of methane and nitrous oxide.
Posted inResearch Spotlights
Microbial Activity in Dry Soils
Researchers investigate how microbes respire in dry conditions.
Posted inResearch Spotlights
A Database of African Precipitation from 1983 Onward
Satellite infrared observations are used to reconstruct African precipitation records for the past 30 years in an attempt to infer rainfall variability.
Posted inResearch Spotlights
Polar Warming Makes the Jet Stream Stable, Not Wavy or Blocked
An idealized climate model suggests polar warming stabilizes the jet stream and reduces atmospheric blocking at midlatitudes.
Posted inAGU News
Katharine Hayhoe Receives 2014 Climate Communication Prize
Katharine Hayhoe was awarded the 2014 Climate Communication Prize at the AGU Fall Meeting Honors Ceremony. The prize honors an AGU member-scientist for highlighting the importance of promoting science literacy, clarity of message, and efforts to foster respect and understanding of science-based values as they relate to the implications of climate change.