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11 March 2020
Small climate change effects can be the most obvious
Researchers looked at how climate change has already changed temperatures and rainfall patterns worldwide to the point that they would be unfamiliar to people living at the end of the 19th century. Crucially, they then examined how these changes compared with climate fluctuations already experienced in different regions of the globe.
29 January 2020
Likelihood of space super-storms estimated from longest period of magnetic field observations
A ‘great’ space weather super-storm, large enough to cause significant disruption to our electronic and networked systems, occurred on average once in every 25 years according to a new study in the AGU journal Geophysical Research Letters.
10 December 2019
NASA’s treasure map for water ice on Mars
NASA has big plans for returning astronauts to the Moon in 2024, a stepping stone on the path to sending humans to Mars. But where should the first people on the Red Planet land? A new paper published in the AGU journal Geophysical Research Letters will help by providing a map of water ice believed to be as little as one inch (2.5 centimeters) below the surface.
7 May 2019
Roman mining activities polluted European air more heavily than previously thought
Roman-era mining activities increased atmospheric lead concentrations by at least a factor of 10, polluting air over Europe more heavily and for longer than previously thought, according to a new analysis of ice cores taken from glaciers on France’s Mont Blanc.
7 January 2019
Colorado’s Lake Dillon is warming rapidly
The surface waters of Lake Dillon, a mountain reservoir that supplies water to the the Denver area, have warmed by nearly 5 degrees Fahrenheit (2.5 degrees Celsius) in the last 35 years, which is twice the average warming rate for global lakes. Yet surprisingly, Dillon does not show adverse environmental changes, such as nuisance algal blooms, often associated with warming of lakes.
10 December 2018
New insights into the diets of Neanderthals
Today at 4 pm EST, AGU is holding the first of its kind “Geoscience Grab Bag” press conference at Fall Meeting 2018.
27 August 2018
Scientists find corals in deeper waters under stress too
Coral reefs around the world are threatened by warming ocean temperatures, a major driver of coral bleaching. Scientists routinely use sea-surface temperature data collected by satellites to predict the temperature-driven stress on reef communities, but new research shows that surface measurements alone may not accurately predict the full extent of thermal stress on deeper corals.
25 June 2018
Found: Missing Mexican Aurora
By Larry O’Hanlon A scientist and a historian have teamed up to fill in a conspicuous hole in the story of the most intense and famous geomagnetic storm in recent history. The Carrington Event struck on September 1, 1859, when a coronal mass ejection erupted from the Sun and struck Earth. The resulting geomagnetic storm set off a vast display of the Aurora Borealis, the Northern Lights, on September 2 …
30 May 2018
Seismometer readings could offer debris flow early warning
Instruments designed to record earthquakes revealed information about debris-ﬂow speed, the width of the ﬂow and the size of boulders carried by the January 2017 mudslide in Montecito, California, and the location of the event, suggesting that the current generation of seismometers in the ﬁeld could be used to provide an early warning of an incoming debris ﬂow to residents in mudslide-prone areas.
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.