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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.
6 March 2019
Deep diving robots find warming accelerating in South Pacific Ocean waters
The coldest, near-bottom South Pacific waters originating from Antarctica are warming three times faster than they were in the 1990s, according to new research analyzing data from deep-diving ocean robots and research cruises.
21 November 2018
Study: Climate change could force outdoor workers to wake up far earlier
A new study published in Earth’s Future, a journal of the American Geophysical Union, indicates that if society tries to avoid the economic impacts of climate change on outdoor labor by shifting working hours, outdoor workers in many regions will need to start working well before dawn at the end of this century to avoid the effect of excessive heat stress.
1 October 2018
Half-degree of warming could have big impact on water availability
Approximately 117 million more people could face water shortages if global temperatures increase 2 degrees Celsius above pre-industrial levels compared to a 1.5-degree Celsius increase in temperatures, a new study suggests. The world’s water cycle, including evaporation and precipitation, is expected to intensify with global warming, according to the study. This could affect the distribution of freshwater and constrain the global water supply, which poses risks to national food security, economic prosperity and societal well-being.
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.
15 December 2017
High-resolution climate models present alarming new projections for U.S.
Researchers have developed new, high-resolution climate models that may help policymakers mitigate the effects of climate change at a local level.
6 November 2017
New approach to geoengineering simulations is significant step forward
Using a sophisticated computer model, scientists have demonstrated for the first time that a new research approach to geoengineering could potentially be used to limit Earth’s warming to a specific target while reducing some of the risks and concerns identified in past studies, including uneven cooling of the globe.
7 September 2017
Heat stress escalates in cities under global warming
Heatwaves are intensifying in cities due to the double whammy of the urban heat island effect and global warming, according to a new study. By the middle of this century, Belgian cities may experience more than 17 heat wave days per year, on average, with an even greater intensity of 4 degrees Celsius (7.2 degrees Fahrenheit) excess warming.
1 August 2017
Threat to the ozone layer by future volcanic eruptions greater than previously thought
As the CFCs slowly degrade over the coming decades, so too should the volcano’s ozone-destroying power. However, new research shows that the volcanic risk to the ozone layer will persist for decades longer than previously believed.
24 July 2017
Could “cocktail geoengineering” save the climate?
Geoengineering is a catch-all term that refers to various theoretical ideas for altering Earth’s energy balance to combat climate change. New research from an international team of atmospheric scientists published by Geophysical Research Lettersinvestigates for the first time the possibility of using a “cocktail” of geoengineering tools to reduce changes in both temperature and precipitation caused by atmospheric greenhouse gases. Carbon dioxide emissions from the burning of coal, oil, and gas …
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.