Warm water underneath Antarctica’s great ice sheet is eroding it

Antarctica retreating across the sea floor, EurekAlert , UNIVERSITY OF LEEDS , 3 April 18 Antarctica’s great ice sheet is losing ground as it is eroded by warm ocean water circulating beneath its floating edge, a new study has found.

Research by the UK Centre for Polar Observation and Modelling (CPOM) at the University of Leeds has produced the first complete map of how the ice sheet’s submarine edge, or “grounding line”, is shifting. Most Antarctic glaciers flow straight into the ocean in deep submarine troughs, the grounding line is the place where their base leaves the sea floor and begins to float.

Their study, published today in Nature Geoscience, shows that the Southern Ocean melted 1,463 km2 of Antarctica’s underwater ice between 2010 and 2016 – an area the size of Greater London.

The team, led by Dr Hannes Konrad from the University of Leeds, found that grounding line retreat has been extreme at eight of the ice sheet’s 65 biggest glaciers. The pace of deglaciation since the last ice age is roughly 25 metres per year. The retreat of the grounding line at these glaciers is more than five times that rate.

The biggest changes were seen in West Antarctica, where more than a fifth of the ice sheet has retreated across the sea floor faster than the pace of deglaciation……….https://www.eurekalert.org/pub_releases/2018-04/uol-ara032918.php

1.This Month

“Lessons from Fukushima” booklet, available in 14 languages.

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For First Time, Majority in U.S. Oppose Nuclear Energy, Gallup, BY REBECCA RIFFKIN , March 18, 2016,

STORY HIGHLIGHTS

54% of Americans oppose nuclear energy, 44% in favor
First time in Gallup’s trend that majority oppose nuclear energy
Both major parties less likely to favor nuclear energy than in 2015

WASHINGTON, D.C. — For the first time since Gallup first asked the question in 1994, a majority of Americans say they oppose nuclear energy. The 54% opposing it is up significantly from 43% a year ago, while the 44% who favor using nuclear energy is down from 51%.

Gallup asks Americans as part of its annual Environment poll if they favor or oppose the use of nuclear energy as one way to provide electricity. Each year from 2004 to 2015, a majority of Americans said they favored the use of nuclear energy, including a high of 62% in 2010.

In 2011, Gallup conducted its annual Environment poll a few days before the Fukushima nuclear plant disaster in Japan, and at that time, 57% of Americans were in favor of nuclear energy. The next time the question was asked in 2012, a similar majority still favored the use of nuclear energy.

And although there have not been any major nuclear incidents since Fukushima in 2011, a majority of U.S. adults now oppose nuclear energy. This suggests that energy prices and the perceived abundance of energy sources are the most relevant factors in attitudes toward nuclear power, rather than safety concerns prompted by nuclear incidents.

Lower gasoline prices over the past year are likely driving greater opposition toward the use of nuclear power. As Americans have paid less at the pump, their level of worry about the nation’s energy situation has dropped to 15-year-low levels. This appears to have resulted in more Americans prioritizing environmental protection and fewer backing nuclear power as an alternative energy source.

Democrats and Republicans Less Likely to Favor Nuclear Energy

Republicans continue to be more likely than Democrats and independents to be in favor of nuclear energy. Still, support for the use of nuclear energy among Republicans and Democrats has declined in comparison to 2015. A slight majority of Republicans, 53%, are in favor of nuclear energy, down significantly from 68% last year. One in three Democrats, 34%, favor it, down from 42% in 2015. Independents’ support is essentially unchanged from last year, but is down from the high Gallup found in 2010……..

Survey Methods

Results for this Gallup poll are based on telephone interviews conducted March 2-6, 2016, with a random sample of 1,019 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia. For results based on the total sample of national adults, the margin of sampling error is ±4 percentage points at the 95% confidence level. All reported margins of sampling error include computed design effects for weighting.

Each sample of national adults includes a minimum quota of 60% cellphone respondents and 40% landline respondents, with additional minimum quotas by time zone within region. Landline and cellular telephone numbers are selected using random-digit-dial methods. https://news.gallup.com/poll/190064/first-time-majority-oppose-nuclear-energy.aspx

EVENTS

November-December 2018 International Uranium Film Festival – U.S. Southwest tour

November 29th and 30th and December 1st, Navajo Nation Museum, Hwy 264 & Post Office Loop, Window Rock, Navajo Nation, AZ

December 2nd, Flagstaff, AZ

December 6th, Guild Cinema, 3405 Central Ave, Albuquerque, NM

December 7th, Grants, NM

December 9th, Jean Cocteau Cinema, 418 Montezuma Ave, Santa Fe, NM

PETITIONS

Tell Congress: Stop Trump from ordering a nuclear first strike without a Congressional declaration of war.

PREVENT UNNECESSARY RADIOACTIVE RISKS ACROSS THE USA NATION

Protect Idaho’s water. Stop nuclear waste.

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