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29 July 2019
Study suggests frozen Earthlike planets could support life
Icy planets once thought too cold to support life might have livable land areas above freezing, challenging the typical assumption of what kinds of planets might be habitable, a new study suggests.
27 June 2019
Study finds increased moisture facilitated decline in African fires in Africa
The amount of area burned across Africa declined by 18.5 percent between 2002 and 2016, according to a new study.
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.
5 June 2019
One third of the African urban population exposed to extreme heat by 2090
An international team of researchers has combined demographic projections and climate scenarios across Africa for the first time. Rapid urbanization combined with climate change is having a major impact on the living conditions of city-dwellers in Africa, especially in terms of exposure to extreme – or even lethal – temperatures.
3 June 2019
Loss of Arctic sea ice stokes summer heat waves in southern U.S.
Over the last 40 years, Arctic sea ice thickness, extent and volume have declined dramatically. Now, a new study finds a link between declining sea ice coverage in parts of the Canadian Arctic and an increasing incidence of summer heat waves across the southern United States.
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.
16 May 2019
Earthquake in 2009 intensified American Samoa’s rising sea levels
The 2009, magnitude-8.1 Samoa earthquake dealt a great deal of damage to the Samoan Islands: Tsunami waves as high as 14 meters (46 feet) wiped out multiple villages, claiming nearly 200 lives and severely damaging water and electrical systems. New research reveals the damage is likely to continue in the island Tutuila, also known as American Samoa.
13 May 2019
La Niña’s effect on droughts can be traced back to U.S. Civil War
The Civil War drought – one of the worst to afflict the U.S. in centuries – occurred in the mid-1850s to the mid-1860s. That drought is infamous for its effects in the U.S. Southwest and parts of the Great Plains, where it led to the near extinction of the American bison and played an important role in changing the course of the Civil War by causing food and water shortages, slowing the advance of part of the Confederate army in 1862.
19 March 2019
Western droughts caused permanent loss to major California groundwater source
According to new research, the San Joaquin Valley aquifer in the Central Valley shrank permanently by up to 3 percent due to excess pumping during the sustained dry spell.
7 March 2019
Arctic change has widespread impacts
As the Arctic warms faster than the rest of the globe, permafrost, land ice and sea ice are disappearing at unprecedented rates. And these changes not only affect the infrastructure, economies and cultures of the Arctic, they have significant impacts elsewhere as well.
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.