Daily Archives: May 13, 2014

People’s Climate March – NYC Sept. 20-21

This is an invitation to change everything.

In September, world leaders are coming to New York City for a historic summit on climate change. With our future on the line and the whole world watching, let’s take a weekend and use it to bend the course of history.

Together, we’ll take to the streets to demand the world we know is within our reach: a world with an economy that works for people and the planet. A world safe from the ravages of climate change. A world with good jobs, clean air, and healthy communities for everyone.

To change everything, we need everyone on board. September 20-21 in New York City.

Global Climate Change
Environmental Justice
Environment Ethics

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West Antarctic Glacier Loss Appears Unstoppable – NASA Jet Propulsion Laboratory

http://www.jpl.nasa.gov/news/news.php?release=2014-148

NASA Jet Propulsion Laboratory

Streamed live on May 12, 2014

NASA will host a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise.

The briefing participants are:

Climate Change: News – West Antarctic glacier loss appears unstoppable

http://climate.nasa.gov/news/1088

May 12, 2014

By Carol Rasmussen, NASA’s Jet Propulsion Laboratory,
Alan Buis, NASA’s Jet Propulsion Laboratory,
Janet Wilson, University of California, Irvine
and Peter Weiss, American Geophysical Union

A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea.

The study presents multiple lines of evidence, incorporating 40 years of observations that indicate the glaciers in the Amundsen Sea sector of West Antarctica “have passed the point of no return,” according to glaciologist and lead author Eric Rignot, of UC Irvine and NASA’s Jet Propulsion Laboratory in Pasadena, California. The new study has been accepted for publication in the journal Geophysical Research Letters.

These glaciers already contribute significantly to sea level rise, releasing almost as much ice into the ocean annually as the entire Greenland Ice Sheet. They contain enough ice to raise global sea level by 4 feet (1.2 meters) and are melting faster than most scientists had expected. Rignot said these findings will require an upward revision to current predictions of sea level rise.

“This sector will be a major contributor to sea level rise in the decades and centuries to come,” Rignot said. “A conservative estimate is it could take several centuries for all of the ice to flow into the sea.”

….(read more).

Global Climate Change
Environmental Justice
Environment Ethics

NASA Antarctic Ice News


NASA Jet Propulsion Laboratory

Streamed live on May 12, 2014

NASA will host a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise.

The briefing participants are:

Antarctic ice sheet past ‘point of no return

https://www.youtube.com/watch?v=MU6nN3CaAjI
PBS NewsHour

Published on May 12, 2014

A study released by NASA and others offers the most definitive evidence that parts of the ice sheet in West Antarctica are melting and the damage is irreversible. The collapse will take more than a century, and the melting will lead to rising sea levels. Judy Woodruff talks to Thomas Wagner of NASA, one of the team’s lead members, about the larger consequences of these projections.

Global Climate Change
Environmental Justice
Environment Ethics

ScienceCasts: No Turning Back – West Antarctic Glaciers in Irreversible Decline | NASA


ScienceAtNASA

Published on May 13, 2014

Visit http://science.nasa.gov/science-news/… for more.

A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead.

Global Climate Change
Environmental Justice
Environment Ethics

Collapse of Antarctic ice sheet is underway and unstoppable but will take centuries

Video: A new study by researchers at NASA and the University of California at Irvine finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea.

By Darryl Fears, Published: May 12 E-mail the writer

The collapse of the giant West Antarctica ice sheet is underway, two groups of scientists said Monday. They described the melting as an unstoppable event that will cause global sea levels to rise higher than projected earlier.

Scientists said the rise in sea level, up to 12 feet, will take centuries to reach its peak and cannot be reversed. But they said a decrease in greenhouse gas emissions could slow the melt, while an increase could speed it slightly.

…(read more).

Global Climate Change
Environmental Justice
Environment Ethics