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10 March 2020
Major Greenland glacier collapse 90 years ago linked to climate change
Ninety years ago there were no satellites to detect changes in Greenland’s coastal glaciers, but a new study combining historical photos with evidence from ocean sediments suggests climate change was already at work in the 1930s and led to a major collapse of the one of Greenland’s largest coastal glaciers.
15 January 2020
Air Pollution from Oil and Gas Production Sites Visible from Space
Between 2007 and 2019, across much of the United States, nitrogen dioxide pollution levels dropped because of cleaner cars and power plants, the team found, confirming findings reported previously. The clean air trend in satellite data was most obvious in urban areas of California, Washington and Oregon and in the eastern half of the continental United States… However, several areas stuck out with increased emissions of nitrogen dioxide: The Permian, Bakken and Eagle Ford oil and gas basins, in Texas and New Mexico, North Dakota, and Texas, respectively.
26 December 2019
Forces from Earth’s spin may spark earthquakes and volcanic eruptions at Mount Etna
A new study suggests that polar motion and subsequent shifts in Earth’s crust may increase volcanic activity. “I find it quite exciting to know that while climate drives Earth’s spin, its rotation can also drive volcanoes and seismicity,” said Sébastien Lambert, a geophysicist at Paris Observatory in France and lead author of the study. The new findings, however, don’t allow scientists to forecast volcanic activity.
3 December 2019
New study finds the mix that makes Titan’s lakes spew nitrogen bubbles
In a new study published in AGU’s journal Geophysical Research Letters, researchers simulated Titan’s lakes in a pressurized chamber. They found the right combination of methane, ethane and nitrogen crucial for bubbles to form. It is possible these bubble outbreaks are strong enough to shape river deltas in bodies of liquid on the moon.
11 November 2019
Advancing spring warmth could disrupt species migration, development
In a new study in the AGU journal Geophysical Research Letters, scientists found that in many areas of the U.S. springtime temperature thresholds important for plant and animal life cycles occur between six to 20 days earlier in the season than they did 70 years ago.
5 November 2019
Satellite tracking shows how ships affect clouds and climate
By matching the movement of ships to the changes in clouds caused by their emissions, researchers have shown how strongly the two are connected.
27 August 2019
Scientists forecasted late May tornado outbreak nearly four weeks before it ripped through U.S.
“This is the first documented successful long-range forecast for an extended period of tornado activity in the U.S.,” said lead author Victor Gensini, a professor of meteorology at Northern Illinois University.
26 August 2019
Climate change is altering winter precipitation across the Northern Hemisphere
A team of scientists has successfully teased out the influence of human-caused climate change on wintertime precipitation over much of the last century, showing that the warming climate is significantly altering wintertime rainfall and snowfall across the Northern Hemisphere.
26 June 2019
Climate change is transforming northernmost Arctic landscapes
Isachsen, a permafrost monitoring site that sits at a latitude of 78 degrees north on the Arctic Canadian island of Ellef Ringnes, seemed like the last place that would feel the effects of climate change.
7 June 2019
Climate change may shift timing of summer thunderstorms
Climate change could affect the regularity of summer afternoon thunderstorms in some parts of the world, according to new research. A new study in the AGU journal Geophysical Research Letters modeled weather patterns in western Germany, northern France and parts of Belgium, the Netherlands and Luxembourg, under climate change.
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.