Measurements made during a field campaign in Idaho indicate that the speed of winds 2 meters above Earth’s surface determines the type of turbulence present in nighttime inversions.
Climate Change
Autumn Warming No Longer Accelerating Carbon Loss in the North
An analysis of Point Barrow’s 40-year record points to the importance of calculating the carbon cycle’s response to temperature during the northern latitudes’ non-growing season.
Ocean Research and Education Are Foundations for Economic Growth
AGU releases revised position statement that was first adopted in 2005.
Millions More Americans Face Flood Risks Than Previously Thought
A different modeling approach fills large gaps in the U.S. government’s flood risk estimates, revealing previously overlooked at-risk areas often surrounding small flood-prone streams.
How Did Life Learn to Breathe?
Scientists unravel the conditions under which life evolved to breathe oxygen—and the findings have some stellar implications.
Republican Congressman Urges Colleagues to Act on Climate Change
Rep. Brian Fitzpatrick says that Republican members of Congress need to “acknowledge reality” and do more to raise awareness about climate change.
Dramatic Stratospheric Warmings Carved a Hole in the Ionosphere
A new study of sudden temperature spikes in Earth’s stratosphere could improve space weather forecasting.
Landslides Send Carbon-Rich Soils into Long-Term Storage
Earthquake-triggered landslides move soils down steep slopes and deposit the sediments near rivers, sequestering the carbon contained within them for millions of years.
Lightning: A New Essential Climate Variable
Lightning is a symptom and a cause of climate change. A recently established task team is working to make lightning data available and useful for climate science and service applications.
Budgeting Ozone-Depleting Emissions from Coastal Tidal Marshes
Brackish wetlands and their salt-tolerant vegetation are significant methyl halide emitters. The natural emissions add chlorine and bromine to the stratosphere, which break down ozone.
