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8 June 2020
Gold mining with mercury poses health threats for miles downstream
A new study in the Peruvian Amazon shows that the assumption that distance lowers risk from mercury contamination doesn’t hold up.
4 June 2020
Hydrologists show environmental damage from fog reduction is observable from outer space
A new paper presents the first clear evidence that the relationship between fog levels and vegetation status is measurable using remote sensing. The discovery opens up the potential to easily and rapidly assess fog’s impact on ecological health across large land masses — as compared to painstaking ground-level observation.
12 May 2020
New evidence of watery plumes on Jupiter’s moon Europa
Scientists are keen to explore beneath Europa’s thick blanket of ice, and they can do so indirectly by hunting for evidence of activity emanating from below. A new study published in the AGU journal Geophysical Research Letters, did exactly this.
23 April 2020
Promising signs for Perseverance rover in its quest for past Martian life
New research indicates river delta deposits within Mars’ Jezero crater – the destination of NASA’ Perseverance rover – formed over time scales that promoted habitability and enhanced preservation of evidence.
9 April 2020
Greenland Ice Sheet meltwater can flow in winter, too
New findings published in Geophysical Research Letters underscore need for year-round investigations of Arctic hydrology.
31 March 2020
Flooding Stunted 2019 Cropland Growing Season, Resulting in More Atmospheric CO2
A new study determines the impact of the severe 2019 floods, and offers scientists a new tool for measuring regional-scale carbon dioxide absorption by plants.
3 October 2019
Shape of volcanic ash influences contamination of water sources in volcanically active regions
Contaminants from volcanic eruptions leach into water at different rates depending on the shape of the volcanic ash particles, according to new research that could enhancing scientists’ ability to predict water quality risk in volcanically active regions.
1 October 2019
Water distribution affects exoplanets’ habitable zone
A new study finds land planets, which have equal to or less than 10 percent of the volume of Earth’s water, can remain habitable at a closer distance to their host star if most of their water is at the planet’s poles. This means the habitable zone for these types of planets may be different than previously assumed.
23 September 2019
Ice islands on Mars and Pluto could reveal past climate change
Many of the craters of Mars and Pluto feature relatively small ice islands unattached to their polar ice caps. These ice islands could be records of past climate change on Mars and Pluto, and could also provide clues about the workings of Martian water and ice, according to a new study in AGU’s Journal of Geophysical Research: Planets.
28 August 2019
Upper Nile will experience more water scarcity due to hotter, drier periods
An increase in hotter, drier years in the coming decades due to climate change may worsen water scarcity issues in the Upper Nile Basin. These impacts are likely to cause an increase in agricultural failure in Ethiopia and may potentially lead to civil strife, according to the authors of a new study published in Earth’s Future, a journal of the American Geophysical Union.
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.