Saturday, April 27, 2013

Waters off Northeast US coast unusually warm, says NOAA

Sea surface temperatures on the Northeast US Continental Shelf reached the highest recorded in 150 years, says an advisory issued by the National Oceanic and Atmospheric Administration.
From North Carolina to Maine, the waters have been unusually warm lately.
This is according to the National Oceanic and Atmospheric Administration's Northeast Fisheries Science Center, which issued an advisory today noting that sea surface temperatures in the Northeast Shelf Large Marine Ecosystem during the second half of 2012 were the highest recorded in 150 years.
According to the advisory, sea surface temperatures in this region, which extends from Cape Hatteras to the Gulf of Maine and outward to the boundary of the continental shelf, increased dramatically to reach a record 57.2 degrees Fahrenheit, beating a previous record high in 1951. The average temperature over the past three decades has been typically lower than 54.3 degrees Fahrenheit.
The temperatures were recorded via satellite and ship-board measurements. Historical measurements, based on ship-board thermometers, date back to 1854. According to NOAA, the warming was the greatest increase on record, and one of only five instances when the temperature has changed by more than 1.8 degrees Fahrenheit. These drastic changes have not been noted elsewhere in the ocean basin, although in recent years global sea surface temperatures have been the highest on record.
The warmer ocean temperatures might be good news for beachgoers in the Northeast, but they could also disrupt ecosystems, along with the livelihoods that depend on them. The report notes that black sea bass, summer flounder, longfin squid, and butterfish have been migrating northeastward. Lobsters are migrating too, but at a slower rate.
The report quotes Michael Fogarty, who heads NOAA's the Ecosystem Assessment Program:
“What these latest findings mean for the Northeast Shelf ecosystem and its marine life is unknown,” Fogarty said. “What is known is that the ecosystem is changing, and we need to continue monitoring and adapting to these changes.” More

 

Thursday, April 25, 2013

Atmospheric carbon levels nearing historic threshold

For the first time in human history, concentrations of the greenhouse gas carbon dioxide (CO2) could rise above 400 parts per million (ppm) for sustained lengths of time throughout much of the Northern Hemisphere as soon as May 2013.

To provide a resource for understanding the implications of rising CO2 levels, Scripps Institution of Oceanography at UC San Diego is providing daily updates of the “Keeling Curve,” the record of atmospheric CO2 measured at Hawaii’s Mauna Loa. These iconic measurements, begun by Charles David (Dave) Keeling, a world-leading authority on atmospheric greenhouse gas accumulation and Scripps climate science pioneer, comprise the longest continuous record of CO2 in the world, starting from 316 ppm in March 1958 and approaching 400 ppm today with a familiar saw-tooth pattern. For the past 800,000 years, CO2 levels never exceeded 300 parts per million.

“I wish it weren’t true, but it looks like the world is going to blow through the 400-ppm level without losing a beat,” said Scripps geophysicist Ralph Keeling, who has taken over the Keeling Curve measurement from his late father. “At this pace we’ll hit 450 ppm within a few decades.”

The website keelingcurve.ucsd.edu offers background information about how CO2 is measured, the history of the Keeling Curve, and resources from other organizations on the current state of climate. An accompanying Twitter feed, @keeling_curve, also provides followers with the most recent Keeling Curve CO2 reading in a daily tweet.

Dave Keeling began recording CO2 data at Mauna Loa and other locations after developing an ultraprecise measurement device known as a manometer. Ralph Keeling took over the program in 2005 and also heads a program at Scripps to measure changes in atmospheric oxygen. The Scripps O2 and CO2 programs make measurements of CO2 and other gases at remote locations around the world, including Antarctica, Tasmania, and northern Alaska. The Scripps programs are complementary to many other programs now measuring CO2 and other greenhouse gases worldwide.

Scientists estimate that the last time CO2 was as high as 400 ppm was probably the Pliocene epoch, between 3.2 million and 5 million years ago, when Earth’s climate was much warmer than today. CO2 was around 280 ppm before the Industrial Revolution, when humans first began releasing large amounts of CO2 to the atmosphere by the burning of fossil fuels. By the time Dave Keeling began measurements in 1958, CO2 had already risen from 280 to 316 ppm. The rate of rise of CO2 over the past century is unprecedented; there is no known period in geologic history when such high rates have been found. The continuous rise is a direct consequence of society’s heavy reliance on fossil fuels for energy.

Each year, the concentration of CO2 at Mauna Loa rises and falls in a sawtooth fashion, with the next year higher than the year before. The peak of the sawtooth typically comes in May. If CO2 levels don’t top 400 ppm in May 2013, they almost certainly will next year, Keeling said.

“The 400-ppm threshold is a sobering milestone, and should serve as a wake up call for all of us to support clean energy technology and reduce emissions of greenhouse gases, before it's too late for our children and grandchildren,” said Tim Lueker, an oceanographer and carbon cycle researcher who is a longtime member of the Scripps CO2 Group. More

 

Pathways into the Future - Triggers of Change

The 2013 Earth Dialogues will attract leading figures of international politics, science, business and civil society in the search for solutions to resolve the most pressing and interconnected challenges of insecurity, poverty and environmental degradation.

The event is open to members of the public, who register with Green Cross following the guidelines found here.

The 7th edition of the Earth Dialogues will be held at the United Nations Office at Geneva, Switzerland, on 3 September, 2013. The day-long event, titled Pathways into the Future - Triggers of Change, comes at a time of deep crisis in multilateralism, hallmarked by a lack of consensus, and coordinated international action, to respond to rampant ecological breakdown, globalization and disparities between rich and poor.

The UN says clean energy funding too low to address climate change. http://buswk.co/12KfhH0 Clean energy is the future solution to our energy needs, and will be a key topic at the upcoming Earth Dialogues conference in Geneva on 3 September: http://bit.ly/15G7H2W

How can gains in human development be sustained, climate change controlled and sustainability ensured in the absence of a strong multilateral system that all decision-makers are party to?

The conference's objective will be to demonstrate how multilateralism can – and must – be recalibrated to meet these challenges. The event will provide a launching pad for initiatives to bolster effective multilateral action, and Geneva, the cradle for international modern consensus and cooperation, offers a perfect platform.

Five panels will be held during the Earth Dialogues conference on:

  • Lessons learned (from Rio 1992 to Rio+20)
  • Inclusive and Circular economy based Growth (In Search of a New Development Model)
  • Reinventing Multilateralism (Climate, Water/Energy/Food, Security) - two panels
  • Preparedness for the Future – Global and Local Resilience – Ability to Overcome and Reconsolidate Societal Functions after Major Shocks

The event will enable rich, valuable discourse and exchanges on critical issues and agendas facing the world today.

Discussions and decisions will go towards developing the “Geneva Appeal”, which will outline a road map of specific acitons and “tipping points” needed to launch the Future We Want movement, as outlined in the outcoome documentof the United Conference on Sustainable Development (Rio+20).

For more information: Please email earthdialogues@gci.ch or click here for registration details

Water World: Sea Level Rise in Real Life

Sea levels have risen along the East Coast around 6 to 8 inches since 1960. Under different global warming scenarios, seas could rise 8 inches to several feet by 2100.

The longer term concern is that if warming causes the collapse of the Greenland and/or Antarctic ice sheets, seas could rise tens of feet, although it is thought a rise of that magnitude would take hundreds of years.

Nickolay Lamm, a 24-year-old researcher and artist from StorageFront.com, was motivated to gain a better idea of what such a devastating rise in sea level would look like. And so he created a set of surreal images showing treasured landmarks swallowed by sea water.

To create these visualizations, Lamm took stock photos of the different landmarks, used Google Earth to determine their exact location, and applied mapped sea level rise projections obtained from Climate Central.

In addition to the Jefferson and Washington monuments, he created visualizations from landmarks in Miami, New York City, and Boston viewable in a multimedia post at Mashable.com

“The inspiration for these sea level rise photos came from What Could Disappear from the New York Times,” Lamm wrote on his blog. “Because the maps shown were not in a high enough resolution to figure out exactly which places would be flooded, I got in touch with Remik Ziemlinski from Climate Central who gave me access to more precise versions of the same maps that New York Times used.”

Even if you’re skeptical of some of the more alarming and dramatic sea level rise projections from global warming, these visuals can give you a realistic sense of what hurricane storm surge flooding could do in these East Coast cities. Major hurricanes could bring double digit foot surges up and down the East Coast (although a 25-foot surge is probably unrealistic – in the current climate).

Hurricane Sandy swamped sections of New York City with a 14 foot surge, and, in 2003, Hurricane Isabel sent an 8-foot surge up the Potomac River.

Related: If Hurricane Sandy had come south: the dramatic storm surge scenario for Washington, D.C.

(Sources of images: StorageFront.com). More

 

Tuesday, April 23, 2013

Kerry says 'The science is screaming at all of us and demands action'

Secretary of State John Kerry delivered a strong Earth Day message on climate change, calling it a “clear and present danger.”

He also repeated the line from his powerful March remarks on climate change that “the science is screaming” at us to act. But that raises the question — are Kerry and his boss really listening?

The White House started sending signals last month “the president is inclined to approve the Keystone XL pipeline.” And, for what it’s worth, David Gordon, State’s director of policy planning when Condoleezza Rice was Secretary, just told a Canadian newspaper “I would say the chances are about four-to-one” Obama approves the tar sands pipeline.

Perhaps so, but then how empty would Kerry’s Earth Day message be:

This year’s Earth Day theme, the Faces of Climate Change, puts a special focus on the very real impact climate change has on people everywhere, and demonstrates just how clearly connected we all are. What one country does impacts the livelihoods of people elsewhere – and what we all do to address climate change now will largely determine the kind of planet we leave for our children and generations to come. As was clear in President Obama’s second inaugural address and in his State of the Union message, the United States is committed to meeting this challenge head on…. Dealing responsibly with the clear and present danger of climate change was a focus of my recent trip to China, and it is a challenge I will be engaging to meet everywhere I travel….

The science is screaming at all of us and demands action. From the far reaches of Antarctica’s Ross Sea to tropical wetlands in Southeast Asia, we have a responsibility to safeguard and sustainably manage our planet’s natural resources, and the United States remains firm in its commitment to addressing global environmental challenges.

One can’t, of course, “sustainably manage” the tar sands.

A must-see 2012 video explains how tar sands development threatens the carbon-rich boreal forests and their vital ecosystems. A 2012 study found that existing industry plans for exploiting the tar sands will destroy over 29,500 hectares (65%) of local carbon-rich peatland (aka bogs, moors, mires, and swamp forests) — which in turn will release the equivalent of up 173 million metric tons of CO2.

The bottom line is that Keystone is a gateway to a huge pool of carbon-intensive fuel most of which must be left in the ground — along with most of the world’s coal and unconventional oil and gas – if humanity is to avoid multiple devastating impacts that may be beyond adaptation.

Is Kerry going to accelerate the ruination of the whole world’s climate in return for not bloody much. To paraphrase Sir Thomas More in A Man for All Seasons:

The Center for American Progress has filed its own comments on the Keystone XL Draft Supplemental Environmental Impact Statement explaining why the pipeline is not “in the national interest”:

Dear Secretary Kerry:

We urge you to reject the resubmitted permit for the proposed Keystone XL pipeline. It is not in the national interest of the United States because the pipeline would facilitate a dramatic increase in the production of high carbon polluting tar sands oil, but will only create very few U.S. jobs. And much of the oil transported to the Gulf Coast will be exported to other nations. The United States must not facilitate the expansion of a huge source of carbon pollution that would exacerbate climate change. The Keystone XL pipeline is all risk and no reward.

The draft Supplement Environmental Impact Statement SEIS includes the following information that reinforces that the pipeline is not in the national interest:

  • Production of tar sands oil emits more carbon pollution than conventional oil, which is confirmed by independent analysis by both the Congressional Research Service and Environmental Protection Agency;
  • Much of the oil transported via Keystone XL to refineries in the Gulf Coast will be refined into fuel and exported to other nations, thereby adding little to U.S. energy security.
  • Only 35 permanent jobs would result from the pipeline. More

 

Sunday, April 21, 2013

Thin Ice Film


 

ORIGINS

Thin Ice is a joint initiative between Oxford University, United Kingdom, Victoria University of Wellington, New Zealand (VUW), and London-based DOX Productions. Both Universities have active programmes with world-wide networks of collaborators in climate change and related research. For Oxford see www.climateprediction.net andwww.eci.ox.ac.uk, and for VUW see www.victoria.ac.nz/antarctic and www.victoria.ac.nz/climate-change.

The project began over a cup of coffee at a Climate Change and Governance conference in Wellington in March 2006. Peter Barrett (VUW) suggested to Simon Lamb (Oxford) that he make a film about it with his friend David Sington (DOX Productions)

The aim from the outset was to give people from all walks of the life the chance to see the astonishing range of human activity as well as scientific endeavour that is required to help us understand our changing climate. Our idea was then we would all be better able to decide both individually and collectively how we might deal with it.

What we have done

We have visited researchers on 4 continents and the ocean as they studied the changes in the atmosphere, oceans and ice sheets through measurements (from instruments, satellites, ice and rock) and computer modelling. We have to think not only in human time scales (hundreds of years), but also Ice Age time scales (tens of thousands of years), and even beyond (before 2-3 million years ago) when Earth was naturally warmer.

FILM CREDITS

A David Sington/Simon Lamb Film

Directors: David Sington and Simon Lamb

Co-producer: Catherine Fitzgerald

Executive Producers: Peter Barrett and Philip England

Editor: David Fairhead

Music: Phillip Sheppard

Photographer: Simon Lamb

Additional photography: Tony Burrows, Christoph Lerch and Chris Terpstra

Sound: Sarah Kinsella, Michael Kerslake, Tony Williams,

Rudolf Schwarz, Steve Cochran and James Rae


WITH SPECIAL THANKS TO:

Oxford University Department of Earth Sciences

Victoria University of Wellington:

- Research Office (Professor Neil Quigley)

- Victoria University Foundation (Tricia Walbridge)

- Faculty of Science, Architecture & Design (David Bibby)

- Teaching Aids (Steve Cochran and staff)

Antarctica New Zealand:

- Lou Sanson and staff in Christchurch

- Staff at Scott Base for logistical support during the 2007/8 Antarctic field season

United States National Science Foundation:

- Office of Polar Programs

- Staff at McMurdo Station for logistical support during the 2007/8 Antarctic field season

National Institute for Water and Atmospheric Research (NIWA):

- The captains and crews of the of the RV Tangaroa and RV Kaharoa

University Museum of Natural History, Oxford University:

- Prof. Jim Kennedy

British High Commission, New Zealand:

- Chris Harrington, Philippa Norton and Ric Nye

Glassworks, Wellington, New Zealand:

- Grant Franklin

British Embassy, Copenhagen, Denmark:

- Mogens Olsen

ALSO THANKS FOR:

Satellite imagery courtesy of Geoeye and NASA/Goddard Space Flight Center

Scientific Visualization Studio (www.geoeye.com and http://svs.gsfc.nasa.gov/)

Ocean current animation courtesy of CSIRO, Australia, kindly animated at 1080p by Graeme Whittle.

One year computer weather simulation courtesy of the UK - Japan Climate Collaboration (www.earthsimulator.org.uk)animated by R. Stockli & P.L. Vidale.

Global temperature data courtesy of Goddard Institute of Space Studies - GISTEMP Project (Dr James Hansen and Robert Schmunk) http://data.giss.nasa.gov/gistemp/.

Ice core record courtesy of NOAA Ice Core Gateway, Etheridge et al. 1996, Jouzel et al. 2007, Luthi et al. 2008, www.ncdc.noaa.gov/paleo/icecore/antarctica .

CO2 historical emissions data courtesy of Carbon Dioxide Information Analysis Centre (CDIAC), www.cdiac.ornl.gov .