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24 June 2019
Atmospheric rivers getting warmer along U.S. West Coast
Most of the West Coast of the United States relies on a healthy winter snowpack to provide water through the dry summer months. But when precipitation falls as rain rather than snow, it can diminish summer water supplies, as well as trigger floods and landslides. A new study in AGU’s Journal of Geophysical Research: Atmospheres finds atmospheric rivers –plumes of moisture that deliver much of the west’s precipitation—have gotten warmer over the past 36 years.
23 May 2019
New Studies Increase Confidence in NASA’s Measure of Earth’s Temperature
A new assessment of NASA’s record of global temperatures revealed that the agency’s estimate of Earth’s long-term temperature rise in recent decades is accurate to within less than a tenth of a degree Fahrenheit, providing evidence that past and future research is correctly capturing rising surface temperatures.
15 May 2019
Study: U.S. methane emissions flat since 2006 despite increased oil and gas activity
Natural gas production in the United States has increased 46 percent since 2006, but there has been no significant increase of total US methane emissions and only a modest increase from oil and gas activity, according to a new NOAA study.
8 May 2019
A new view of wintertime air pollution
The processes that create ozone pollution in the summer can also trigger the formation of wintertime air pollution, according to a new study led by CIRES and NOAA researchers. The team’s unexpected finding suggests that in the U.S. West and elsewhere, certain efforts to reduce harmful wintertime air pollution could backfire.
24 April 2019
Uncovering polynya: new research unravels 43-year-old Antarctic mystery
Researchers at NYU Abu Dhabi have discovered how the Maud-Rise Polynya that was initially spotted in Antarctica in 1974, reappeared in September 2017 at the same location.
22 April 2019
Microbes hitch a ride on high-flying dust
High-altitude dust may disperse bacterial and fungal pathogens for thousands of miles, seeding far-flung ecosystems and potentially impacting human health
11 April 2019
Extended winter polar vortices chill Saturn’s strangely familiar moon, Titan
Saturn’s hazy moon Titan has a long-lived Earth-like winter polar vortex supercharged by the moon’s peculiar chemistry. A new study finds Titan’s northern hemisphere polar vortex sticks around past the moon’s summer solstice, into what would be late June on Earth, lasting three-quarters of a Titan year, or about 22 Earth years.
20 February 2019
Earth’s atmosphere stretches out to the Moon – and beyond
A recent discovery based on observations by the ESA/NASA Solar and Heliospheric Observatory, SOHO, shows that the gaseous layer that wraps around Earth reaches up to 630,000 km away, or 50 times the diameter of our planet.
12 February 2019
Mediterranean hurricanes expected to increase in strength by end of century
Hurricane-strength storms in the Mediterranean could hit the region with increasing power by the end of the 21st century, growing to robust Category 1 strength, according to a new study in the AGU journal Geophysical Research Letters.
27 December 2018
Rings make Saturn shadier, bluer and less hazy in winter
Saturn’s rings act like Venetian blinds that block sunlight for the hemisphere that’s tilted farther away from the Sun, limiting winter sunlight. This cuts down on the planet’s haze and golden glow.
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.