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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.
9 January 2019
Scientists breathalyze cows to measure methane emissions
Cattle burps are the number two source of methane in the U.S., but it’s tricky to measure exactly how much methane one cow produces in a day. That’s why researchers at the USDA-ARS Conservation and Production Research Laboratory in Bushland, Texas set out to use a number of different methane assessment methods — including a “breathalyzer for cows” — to determine the methane emissions of free-range cattle on Oklahoma grasslands.
12 December 2018
Researchers predict areas of mosquito-borne disease risk in Brazil
Tracking human demographic, climate, and environmental data may help scientists predict and prioritize areas with high risk for mosquito-borne diseases, according to new research.
17 October 2018
Arctic ice sets speed limit for major ocean current
Long-term melting may lead to release of huge volumes of cold, fresh water into the North Atlantic, impacting global climate.
28 September 2018
Ice age discovery may reveal early migration route of first Americans
Researchers discovered the retreat of an ancient ice sheet from the western coast of Canada occurred earlier than previously thought. Christopher Darvill and his co-authors studied the Cordilleran Ice Sheet in North America – which once covered an area the size of the Greenland Ice Sheet – to improve our understanding of past climate and ancient human migration.
6 April 2018
Early climate action has big effect on rising sea levels
Rising sea levels will accelerate this century and beyond, exposing hundreds of millions of people to flooding and other coastal hazards by the year 2300. But acting early to lower greenhouse gas emissions can slow that rise, say scientists in two new studies in Earth’s Future, an open access journal published by the American Geophysical Union.
8 February 2018
Urban heating punches city-shaped holes in fog over India
Scientists have observed discrete holes in widespread fog directly above cities in India, other regions of Asia and Europe. The fog holes increase in size as city populations increase, and the researchers suspect the urban heat island effect is likely to blame for the striking phenomenon.
5 April 2017
Research links decline in hemlock forests to changes in water resources
An insect infestation killing hemlock trees in New England is having a significant impact on essential water supplies in one of the nation’s most populous regions, a new study finds. The study is the first to show an increase in water yield, the amount of water reaching streams and rivers, resulting from forest damage caused by an insect pest called the hemlock woolly adelgid.
24 March 2017
Study shows as US drilling surged, methane emissions didn’t
A new study shows U.S. methane emissions did not grow significantly from 2000 to 2013 and are not likely to have been an important driver of the increase in atmospheric methane levels observed worldwide after 2007, as other studies have suggested. The new study provides additional insight into a question that has puzzled scientists for the past decade: what has been causing the increase in global methane levels since 2007?
1 March 2017
WMO verifies highest temperatures for Antarctic Region
A World Meteorological Organization (WMO) committee of experts has announced new records for the highest temperatures recorded in the Antarctic Region as part of continuing efforts to expand a database of extreme weather and climate conditions throughout the world.
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.