glacier

Easterbrook’s wrong (again)

by Gareth January 4, 2011

Over the holiday period I’ve had a number of people point me at the latest “essay” by Don “Cooling-gate” Easterbrook — it was featured in full at µWatts, translated into German and Dutch, and made headline material for Morano: Geologist: 9,099 Of Last 10,500 Years Warmer Than 2010. I was a little surprised. I thought [...]

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Clear and present danger: Lonnie Thompson on the message in the ice

by Bryan Walker December 10, 2010

Paleoclimatologist Lonnie Thompson, distinguished university professor in the School of Earth Sciences at The Ohio State University, is well known and widely respected for his decades of work on ice caps and glaciers, especially in tropical and sub-tropical regions. In the past Thompson has let his research data and conclusions speak for him but he [...]

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NZ glaciers holding their own (just)

by Gareth November 9, 2010

New Zealand’s glaciers just about held their own over last summer, showing a very slight gain in mass on average according to NIWA’s annual end of summer snowline survey, released today. The Park Pass glacier (above) in the Mt Aspiring National Park between the Hollyford Valley and the head of Lake Wakatipu (map) is one [...]

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Tropical ice land: climate change hits Peruvians

by Bryan Walker September 23, 2010

It may not be strictly scientific, but anthropological observation like this is invaluable because in the end, people’s interpretation of the events they see around them count as much as or more than any peer-reviewed paper.” Guardian journalist John  Vidal has been with other writers on an Oxfam-guided tour of Peru and Ecuador  to see [...]

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Take a peek at Pukaki’s climate history

by Gareth September 12, 2010

High in the Ben Ohau range to the west of Lake Pukaki in the South Island’s Mackenzie basin, the glacial moraines in the Irishman Stream Basin (Google Map) are providing important confirmation that the southern hemisphere warmed during a rapid northern hemisphere cooling event at the end of the last ice age. In a new [...]

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Don’t watch that, watch this!

by Gareth June 12, 2010

If you’ve got any interest at all in the state of the Arctic Sea Ice, resist the temptation to watch the World Cup, or the start of the All Black’s winter season, and take a look at David Barber’s talk at the International Polar Year’s Oslo Science Conference. Go to the “Web TV” page, then [...]

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It’s grim up North #2

by Gareth June 10, 2010

From NASA’s eyes in the sky, this is a view of the west coast of Greenland downloaded earlier today, looking down on the Ilulissat Icefjord — the outlet for the Jakobshavn Isbrae, the biggest outlet glacier in Greenland and the largest in the northern hemisphere. It’s the long tongue of white reaching up from right [...]

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Greenland ice melt spreads northwest

by Gareth March 27, 2010

This animation shows Greenland’s ice mass loss over 2003 to 2009, estimated by combining data from NASA’s GRACE satellites with high precision GPS measurements of “rebound” in the underlying rock as the weight of ice is removed. The lightest blue shows low levels of mass loss, black the highest. From the University of Colorado press [...]

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The dangerous sea

by Bryan Walker March 18, 2010

This column was published in the Waikato Times on March 16. The media has paid disproportionate attention to an error in the monumental 2007 report of the Intergovernmental Panel on Climate Change.  In a chapter surveying the possible future impacts of climate change on the Asian region the report included a prediction that the Himalayan [...]

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Tipping and other points

by Gareth February 15, 2010

During the Copenhagen kerfuffle a lot of interesting stuff hit the web: here’s something that deserves a bit more air – a Proceedings of the National Academy of Science (PNAS) special issue on tipping elements in the earth system, edited by John Schellnhuber, the director of the Potsdam Institute for Climate Impact Research in Germany. [...]

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