Posts Tagged ‘glaciers’
Glaciers shed billions of tons, satellites show
U. COLORADO-BOULDER (US) — Ice caps and glaciers outside the regions of Greenland and Antarctica are shedding roughly 150 billion tons of ice annually. Continue…
Wednesday, February 8, 2012 15:47 - 2 Comments
Earth & Environment - Jan 31, 2012 10:47 - 2 Comments
Volcanoes likely sparked Little Ice Age
U. COLORADO-BOULDER (US) — Four massive tropical volcanic eruptions that occurred over a span of 50 years may have triggered Earth’s enigmatic Little Ice Age. (more…)
Science & Technology - Jan 24, 2012 12:44 - 0 Comments
Icy microbes make case for life on Mars
PENN STATE (US) — The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers. (more…)
Earth & Environment - Dec 21, 2011 9:50 - 1 Comment
Tap runs dry as glaciers recede
MCGILL (CAN) — Glaciers are retreating at an unexpectedly fast rate, according to research in Peru’s Cordillera Blanca. (more…)
Earth & Environment - Dec 14, 2011 10:13 - 1 Comment
Tropics may speed glacial melt
U. WASHINGTON (US) — Accelerated melting of two outlet glaciers in the Antarctic is likely due in part to an increase in sea-surface temperatures in the tropical Pacific Ocean. (more…)
Earth & Environment - Aug 9, 2011 16:40 - 1 Comment
Tsunami shears off icebergs in Antarctica
U. CHICAGO (US) — Scientists have observed for the first time the power of a tsunami to break off large icebergs—in this case, the chunks of ice together equaled about two times the surface area of Manhattan. (more…)
Earth & Environment - Jul 18, 2011 12:48 - 0 Comments
Glacier’s size runs hot and cold
U. BUFFALO (US) — Calving glaciers are particularly sensitive to climate change, shrinking rapidly in response to global warming and growing at a similar pace during periods of cooling. (more…)
Earth & Environment - Jan 28, 2011 11:35 - 0 Comments
Fossils link cooler ocean to extinction
CALTECH (US) — New evidence supports the idea that a mass extinction 450 million years ago was linked to a cooling climate. (more…)
Earth & Environment - Jan 26, 2011 16:31 - 2 Comments
More melting may slow glacier flow
U. LEEDS (UK) — Hotter summers may not be as catastrophic for the Greenland ice sheet as previously feared and may actually slow down the flow of glaciers. (more…)
Earth & Environment - Sep 17, 2010 11:30 - 0 Comments
Glaciers act as mountains’ armor
YALE (US)— Glaciers in the southern reaches of the Patagonian Andes have acted as a kind of protective shield throughout the mountain range’s 25-million-year history. (more…)
Earth & Environment - May 4, 2010 7:50 - 3 Comments
Carbon cycle snowballed out of control
PRINCETON (US)—New evidence uncovered by a team of geologists suggests that an episode 720 million years ago called “snowball Earth,” which may have covered the continents and oceans in a thick sheet of ice, produced a dramatic change in the carbon cycle. (more…)
Earth & Environment - Mar 25, 2010 17:09 - 3 Comments
Greenland melt spreads to both coasts
U. COLORADO (US)—Ice loss from the Greenland ice sheet, which has been increasing during the past decade over its southern region, is now making an upward climb on its northwest coast as well. (more…)
Earth & Environment - Dec 17, 2009 15:41 - 10 Comments
Little global warming goes a long way
PRINCETON (US)—The planet’s polar ice sheets are vulnerable to large-scale melting even under moderate global warming scenarios. Such melting would lead to a large and relatively rapid rise in global sea level, submerging many coastal areas. (more…)
Earth & Environment - Nov 12, 2009 17:57 - 1 Comment
Watching glaciers slide—in a freezer
IOWA STATE (US)—A walk-in freezer in Iowa may help scientists understand how glaciers react to climate change and contribute to rising sea levels. (more…)
Earth & Environment - Nov 2, 2009 10:50 - 0 Comments
Mapping the bottom of the world
U. MINNESOTA (US)—Penguin poop has a reddish tint that makes colonies and trails stand out on satellite images. That’s a boon to researchers who want to identify and keep track of remote, inaccessible colonies. But to do so, they need somebody to turn satellite images into maps. (more…)
Earth & Environment - Oct 20, 2009 11:32 - 0 Comments
Arctic cores signal ‘unique’ climate shift
U. COLORADO (US)—An analysis of sediment cores indicates that biological and chemical changes occurring at a remote Arctic lake are unprecedented over the past 200,000 years and likely are the result of human-caused climate change. (more…)
Earth & Environment - Sep 1, 2009 6:00 - 0 Comments
Icy mile leads to climate future
The international North Greenland Eemian Ice Drilling, or NEEM, project begun in 2009 to retrieve deep ice cores from the Earth’s Eemian warm period 120,000 years ago. Atmospheric gases trapped in the ancient ice are expected to help scientists better assess the risks of abrupt climate change as Earth warms in the future. (Courtesy: NEEM Ice Core Drilling Project)
Earth & Environment - Jul 9, 2009 14:39 - 1 Comment
Plants save Earth from icy doom
“Our research supports the emerging view that plants should be recognized as a geologic force of nature, with important consequences for all life on Earth,” says coauthor David Beerling from the University of Sheffield.
