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26 April 2018
New study finds glacial evidence for abrupt climate change
Results from a new study indicate that the physical impact of abrupt climate change in Britain, Ireland and maritime Europe may be markedly different from previous perceptions of these events.
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.
28 March 2018
Study reveals potential stability of ocean processes despite climate change
In a new study published in Global Biogeochemical Cycles, a journal of the American Geophysical Union, Pearse Buchanan, a scientist at the Institute for Marine and Antarctic Studies at the University of Tasmania, and his team integrated new, dynamic ways of representing marine ecosystem processes in ocean models. In applying them, they found that a more realistic representation of the marine ecosystem helped the ocean to take up and store carbon at similar rates regardless of global changes in physical properties, like temperature, salinity and circulation.
20 March 2018
Wind, sea ice changes suggest climate change in western Arctic
A major shift in western Arctic wind patterns occurred throughout the winter of 2017 and the resulting changes in sea ice movement are possible indicators of a changing climate, according to authors of a new study.
15 March 2018
New study helps explain Greenland glaciers’ varied vulnerability to melting
Using data from NASA missions observing Earth, researchers at the University of California, Irvine have created new maps of the bed topography beneath a score of glaciers in southeast Greenland, thereby gaining a much better understanding of why some are undergoing rapid retreat and others are relatively stable.
6 March 2018
Ice-age echoes affect present-day sea level
A new study has, for the first time, cut a clear path through a nettlesome problem: accurately measuring a powerful effect on global sea level that lingers from the last ice age. Just how quickly Earth’s deep, rocky mantle is rebounding from the heavy burden of ancient ice sheets and oceans remains somewhat uncertain. But this rebound effect, known as glacial isostatic adjustment (GIA), is critical to properly understanding the causes of sea level change.
21 February 2018
Evidence of surprising ocean warming around Galápagos corals
The ocean around the Galápagos Islands has been warming since the 1970s, according to a new analysis of the natural temperature archives stored in coral reefs.
24 January 2018
Rise in severity of hottest days outpaces global average temperature increase
While Earth’s average annual temperature has increased at a steady pace in recent decades, there has been an alarming jump in the severity of the hottest days of the year during that same period, with the most lethal effects in the world’s largest cities, a new study finds.
Stored heat released from ocean largely responsible for recent streak of record hot years
Global temperatures spiked during the record warm years of 2014 to 2016 largely because El Niño released an unusually large amount of heat generated by greenhouse gas emissions and stored in the Pacific Ocean, a new study finds.
Dust on snow controls springtime river rise in West
A new study has found that dust, not spring warmth, controls the pace of spring snowmelt that feeds the headwaters of the Colorado River.
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.