Click to enlarge — Hope Bay glacier now shedding ice
The troubling news continues this week for the Antarctic peninsula region, which juts out from the icy continent.
Last week, scientists documented threats to the Larsen C and the remainder of the Larsen B ice shelf (most of which collapsed in 2002). The remnant of Larsen B, NASA researchers said, may not last past 2020. And as for Larsen C, the Scotland-sized ice shelf could also be at potentially “imminent risk” due to a rift across its mass that is growing in size…
And the staccato of May melt news isn’t over, it seems…Researchers from the University of Bristol in Britain, along with researchers from Germany, France and the Netherlands, reported on the retreat of a suite of glaciers farther south from Larsen B and C along the Bellingshausen Sea, in a region known as the Southern Antarctic Peninsula…
Using satellite based and gravity measurements, the research team found that “a major portion of the region has, since 2009, destabilized” and accounts for “a major fraction of Antarctica’s contribution to rising sea level.”
The likely cause of the change, they say, is warmer waters reaching the base of mostly submerged ice shelves that hold back larger glaciers — melting them from below.
This has been a common theme in Antarctica recently — a similar mechanism has been postulated for melting of ice shelves in nearby West Antarctica (which contains vastly more ice, and more potential sea level rise, than does the Antarctic peninsula)…
Indeed, the paper suggests these southern Antarctic peninsula glaciers may have only begun their retreat. The glaciers may now be unstable, says the paper, because some of their ice shelves currently rest on bedrock that is not only below sea level, but slopes further downhill as one moves inland…
The greater Antarctic worry remains the ice shelves and glaciers in other regions, West Antarctica and East Antarctica, whose potential contribution to sea level rise is measured in feet or meters, not centimeters or inches. Still, the broad picture is that we’re now seeing consistent — and worrying — changes in many different regions on the fringes of the vast frozen continent.
The know-nothings carry on consistently. They seek out a lone skeptic, legitimate or otherwise, whose writings match their unwillingness to accept responsibility. It doesn’t really matter what the event may be, the process inexorably trudging towards future ills and dim loss. Whether a futile war, corrupt economic policies, destruction of our planetary environment – papier mache politicians accept neither responsibility nor the charge to lead the way from disaster.
Anti-science is only part of their anti-reality. Passing the buck to the next generation’s taxpayers is perfectly acceptable to creeps who define wars as unfunded mandates.
Since his first homily in 2013, Pope Francis has preached about the need to protect the earth and all of creation as part of a broad message on the environment. It has caused little controversy so far.
But now, as Francis prepares to deliver what is likely to be a highly influential encyclical this summer on environmental degradation and the effects of human-caused climate change on the poor, he is alarming some conservatives in the United States who are loath to see the Catholic Church reposition itself as a mighty voice in a cause they do not believe in.
As part of the effort for the encyclical, top Vatican officials will hold a summit meeting…to build momentum for a campaign by Francis to urge world leaders to enact a sweeping United Nations climate change accord in Paris in December. The accord would for the first time commit every nation to enact tough new laws to cut the emissions that cause global warming.
The Vatican summit meeting will focus on the links between poverty, economic development and climate change, with speeches and panel discussions by climate scientists and religious leaders, and economists like Jeffrey Sachs of Columbia. The United Nations secretary general, Ban Ki-moon, who is leading efforts to forge the Paris accord, will deliver the opening address…
In the United States, the encyclical will be accompanied by a 12-week campaign, now being prepared with the participation of some Catholic bishops, to raise the issue of climate change and environmental stewardship in sermons, homilies, news media interviews and letters to newspaper editors, said Dan Misleh, executive director of the Catholic Climate Covenant in Washington.
But the effort is already angering a number of American conservatives, among them members of the Heartland Institute, a [purportedly] libertarian group partly funded by the Charles G. Koch Foundation, run by the billionaire industrialist Koch brothers, who oppose climate policy…
But climate policy advocates see a scheduled address by the pope to Congress in September as a potent moment — about 30 percent of members of Congress are Catholics, more than belong to any other religion, according to a study published this year by the Pew Research Center…
“I think Boehner was out of his mind to invite the pope to speak to Congress,” said the Rev. Thomas Reese, an analyst at the National Catholic Reporter. “Can you imagine what the Republicans will do when he says, ‘You’ve got to do something about global warming’?… ”
Francis chose the name of St. Francis of Assisi, the patron saint of animals and the environment. He talks the talk- and walks the walk. Unlike the patent leather princes American Catholics have been accustomed to Francis actually says the ethics and morality preached in the communal wing of his church are standards that have to be lived up to if you are to be a good Catholic.
I wonder how that will go over with creeps like John Boehner or Rick Santorum, phonies like Jeb Bush, Rubio, Jindal and Christie, et al?
Many scientists assume that the growing level of carbon dioxide in the atmosphere will accelerate plant growth. However, a new study co-written by University of Montana researchers suggests much of this growth will be curtailed by limited soil nutrients.
The end result: By the end of the century, there may be more than an additional 10 percent of CO2 in the atmosphere, which would accelerate climate change…
Cory Cleveland and co-authors looked at 11 leading climate models to examine changes in nitrogen and phosphorous. They found that nitrogen limitation actually will reduce plant uptake of CO2 by 19 percent, while a combined nitrogen and phosphorous limitation will reduce plant uptake by 25 percent.
Most of the world’s leading climate models assume that plants will respond to increased atmospheric levels of CO2 by growing more and more, which is known as the CO2 fertilization effect. The more the plants grow, the more CO2 they absorb from the atmosphere, thereby slowing climate change…
Cleveland said most climate models so far have not included nutrients because such biogeochemical processes are difficult to simulate and vary greatly from one type of terrestrial ecosystem to another. The Community Earth System Model from the National Center for Atmospheric Research, jointly funded by the National Science Foundation and the U.S. Department of Energy, is one of the first to begin considering the role of soil nutrients in the models that are used for climate change projections…
“We found that instead of acting as a carbon sink and drawing down CO2, the terrestrial biosphere could become a net source of the greenhouse gas to the atmosphere by the end of the century, with soil microbes releasing more carbon than growing plants could absorb,” Cleveland said.
Uncertainties remain, however. One of the questions is how soil microbes – which free up nitrogen in the soil, but also release carbon dioxide into the atmosphere – will respond to warming temperatures. Similarly, scientists don’t know if plants will become more efficient at drawing up additional nutrients from the soil. If not, plants won’t be able to keep up with society’s CO2 emissions.
Symptomatic treatment is guaranteed to change only one side of the equation – if and when it works. Unless the continuing causes of anthropogenic climate change are dealt with the ever-expanding calculus of stupidity will still result in negative sums for our species.
We get screwed so corporate barons like the Koch Bros. can continue to optimize profits.
Incessant mountain rain, snow and melting glaciers in a comparatively small region of land that hugs the southern Alaska coast and empties fresh water into the Gulf of Alaska would create the sixth largest coastal river in the world if it emerged as a single stream, a recent study shows.
Since it’s broken into literally thousands of small drainages pouring off mountains that rise quickly from sea level over a short distance, the totality of this runoff has received less attention, scientists say. But research that’s more precise than ever before is making clear the magnitude and importance of the runoff, which can affect everything from marine life to global sea level.
The collective fresh water discharge of this region is more than four times greater than the mighty Yukon River of Alaska and Canada, and half again as much as the Mississippi River, which drains all or part of 31 states and a land mass more than six times as large…
This is one of the first studies to accurately document the amount of water being contributed by melting glaciers, which add about 57 cubic kilometers of water a year to the estimated 792 cubic kilometers produced by annual precipitation in this region. The combination of glacial melt and precipitation produce an amount of water that’s larger than many of the world’s great rivers…
The data were acquired as an average of precipitation, glacial melting and runoff over a six-year period, from 2003 to 2009. Knocked down in many places by steep mountains, the extraordinary precipitation that sets the stage for this runoff averages about 6 feet per year for the entire area, Hill said, and more than 30 feet in some areas.
The study does not predict future trends in runoff, Hill said. Global warming is expected in the future, but precipitation predictions are more variable. Glacial melt is also a variable. A warmer climate would at first be expected to speed the retreat of existing glaciers, but the amount of water produced at some point may decrease as the glaciers dwindle or disappear.
Not so incidentally, this last paragraph is why I withhold judgement on what continued climate change will bring to our high desert region. I’m aware of a majority of climatologists predicting massive drought — and a smaller number whose models expect moderate increases in annual rainfall.
Of course, I hope for the latter. :)
As for the future of glaciers in general? I think we’re screwed.
This map from the National Oceanic and Atmospheric Administration shows vast areas around the world where temperatures from December through February were above average this winter. Only the Northeast U.S. was in a big chill…
Last week, the Grand Junction office of the National Weather Service reported that La Plata County’s average temperature for the meteorological winter – from December through February – was 5 degrees above average…
But Southwest Colorado was just part of a bigger global trend.
The National Oceanographic and Atmospheric Administration, with data from NASA, announced this week that this winter and the first two months of 2015 were the hottest on record globally, with the chilly Northeast U.S. sticking out like a cold thumb in a toastier world.
At nearly 1.5 degrees Fahrenheit above the 20th-century average, last month was the second-warmest February on record globally, slightly behind 1998.
But the combined January and February temperature beat the old record for the first two months set in 2002.
December through February broke the meteorological winter record set in 2007.
NOAA records go back 135 years to 1880. But, that’s OK. You probably can find a guy who trained as a weatherman for some local radio station, or a conservative investor who made money in the “weather business” – to dispute the sum of global scientific record-keeping and analysis.
And with slightly over 6% of the land area of planet Earth, you know the opinion of Americans about the weather is the only one that counts.
From the ground in this extreme northern part of Antarctica, spectacularly white and blinding ice seems to extend forever. What can’t be seen is the battle raging thousands of feet below to re-shape Earth.
Water is eating away at the Antarctic ice, melting it where it hits the oceans. As the ice sheets slowly thaw, water pours into the sea – 130 billion tons of ice per year for the past decade, according to NASA satellite calculations. That’s the weight of more than 356,000 Empire State Buildings, enough ice melt to fill more than 1.3 million Olympic swimming pools. And the melting is accelerating.
In the worst case scenario, Antarctica’s melt could push sea levels up 10 feet (3 meters) worldwide in a century or two, recurving heavily populated coastlines…
Here on the Antarctic peninsula, where the continent is warming the fastest because the land sticks out in the warmer ocean, 49 billion tons of ice are lost each year, according to NASA. The water warms from below, causing the ice to retreat on to land, and then the warmer air takes over. Temperatures rose 5.4 degrees Fahrenheit in the last half century, much faster than Earth’s average, said Ricardo Jana, a glaciologist for the Chilean Antarctic Institute…
Robert Island hits all the senses: the stomach-turning smell of penguin poop; soft moss that invites the rare visitor to lie down, as if on a water bed; brown mud, akin to stepping in gooey chocolate. Patches of the moss, which alternates from fluorescent green to rust red, have grown large enough to be football fields. Though 97 percent of the Antarctic Peninsula is still covered with ice, entire valleys are now free of it, ice is thinner elsewhere and glaciers have retreated, Peter Convey of the British Antarctic Survey said…
A few years back, scientists figured Antarctica as a whole was in balance, neither gaining nor losing ice. Experts worried more about Greenland; it was easier to get to and more noticeable, but once they got a better look at the bottom of the world, the focus of their fears shifted. Now scientists in two different studies use the words “irreversible” and “unstoppable” to talk about the melting in West Antarctica. Ice is gaining in East Antarctica, where the air and water are cooler, but not nearly as much as it is melting to the west.
“Before Antarctica was much of a wild card,” said University of Washington ice scientist Ian Joughin. “Now I would say it’s less of a wild card and more scary than we thought before…”
“Changing the climate of the Earth or thinning glaciers is fine as long as you don’t do it too fast. And right now we are doing it as fast as we can. It’s not good,” said Eric Rignot, of NASA. “We have to stop it; or we have to slow it down as best as we can.”
I understand how short-sighted most folks are. After all, if our politicians only think ahead to the next election, if corporate CEOs only think ahead to the next quarter, if the average person thinks long-term planning means paying off your car – or maybe a home – 100 years or 1000 years is beyond comprehension. But, scientists, especially in a discipline like climatology have to think in geologic time and those wee chunks like 1000 years happen in the blink of an eye. Look over the edge of your TV set, folks. Read, search, include some real science in whatever you add to your thinking life.
Cripes, I remember the first ice geologist I met. I was only 20 and working as a tech in a non-ferrous metals research lab. And with all of his qualifications, the only job he could find here in the States was investigating stress-corrosion cracking – even though he had practically defined the discipline during the couple of years he spent in Antarctica during the International Geophysical Year.
I got to spend lunchtimes with him and a few other scientists from the lab who didn’t mind including in a kid who could only afford to go to engineering night school.
He taught us all about geologic time. He tried to teach us about ice.
For years, politicians wanting to block legislation on climate change have bolstered their arguments by pointing to the work of a handful of scientists who claim that greenhouse gases pose little risk to humanity.
One of the names they invoke most often is Wei-Hock Soon, known as Willie, a scientist at the Harvard-Smithsonian Center for Astrophysics who claims that variations in the sun’s energy can largely explain recent global warming. He has often appeared on conservative news programs, testified before Congress and in state capitals, and starred at conferences of people who deny the risks of global warming.
But newly released documents show the extent to which Dr. Soon’s work has been tied to funding he received from corporate interests.
He has accepted more than $1.2 million in money from the fossil-fuel industry over the last decade while failing to disclose that conflict of interest in most of his scientific papers. At least 11 papers he has published since 2008 omitted such a disclosure, and in at least eight of those cases, he appears to have violated ethical guidelines of the journals that published his work.
The documents show that Dr. Soon, in correspondence with his corporate funders, described many of his scientific papers as “deliverables” that he completed in exchange for their money. He used the same term to describe testimony he prepared for Congress…
The documents were obtained by Greenpeace, the environmental group, under the Freedom of Information Act. Greenpeace and an allied group, the Climate Investigations Center…
Historians and sociologists of science say that since the tobacco wars of the 1960s, corporations trying to block legislation that hurts their interests have employed a strategy of creating the appearance of scientific doubt, usually with the help of ostensibly independent researchers who accept industry funding.
Fossil-fuel interests have followed this approach for years, but the mechanics of their activities remained largely hidden…
Environmentalists have long questioned Dr. Soon’s work, and his acceptance of funding from the fossil-fuel industry was previously known. But the full extent of the links was not; the documents show that corporate contributions were tied to specific papers and were not disclosed, as required by modern standards of publishing.
Hypocrites and liars defame their scientific credentials – while scumbag politicians who never have deserved respect use them to justify corrupt practices. There are damned few of the former – witness the overwhelming majority of collective and individual researchers who have defined the problems of climate change we face. The latter? Well, Congress and especially the majority of Republicans in that cesspool have a lower acceptability rating than Adolf Hitler and Bubonic Plague.
And the plague is innocent of decision-making.
NASA’s Suomi NPP satellite photo
The new year has only just begun, but we’ve already recorded our first days with average carbon dioxide levels above 400 parts per million, potentially leading to many months in a row above this threshold, experts say.
The Scripps Institution of Oceanography records of atmospheric carbon dioxide levels show that Jan. 1 was the first day of the new year above that concentration, followed by Jan. 3 and Jan. 7. Daily averages have continued at this level or higher through Jan. 9, though they could continue to dance up and down around that mark due to day-to-day variations caused by weather systems. But even with those fluctuations, 2015 will likely see many months above 400 ppm, possibly starting with the very first month of the year…
The 400 ppm mark was first passed on May 9, 2013. In 2014, it happened two months earlier, in March. The average CO2 concentrations for March, April and June 2014 were all above 400 ppm, the first time that has been recorded. The peak CO2 measurement of 2014 was just shy of 402 ppm in May.
While the 400 ppm mark is somewhat symbolic (as the increase in warming between 399 ppm and 400 ppm is small), it is a large increase from pre-industrial CO2 concentrations, which were around 280 ppm. The progressively earlier occurrence of these high CO2 levels — not seen in somewhere between 800,000 and 15 million years — points to the inexorable buildup of heat-trapping gas in the atmosphere as human emissions continue unabated.
That increase in CO2 and other greenhouse gases has raised Earth’s average temperature by 1.6°F since the beginning of the 20th century. Some scientists say that to avoid the worst consequences of climate change, that warming needs to stay under 2°C, or 3.6°F…
The world’s plants can only pull so much CO2 out of the atmosphere in a given season, while human emissions keep rising. This is leaving an excess of about 2 ppm of CO2 in the atmosphere every year, meaning the 400 ppm mark will keep occurring earlier and earlier. In just a year or two, carbon dioxide levels will likely be about 400 ppm year-round.
But, hey, Congressional Republicans, Tea Party Know-Nothings and other intellectual failures keep telling the world, “Don’t Worry, Be Happy!” Corporate profits are up. The four or five biggest banks in America need new wheelbarrows to truck their cash around.
And nothing else matters.
In case the Pentagon didn’t make it clear enough that climate change is a real and dangerous thing in its Quadrennial Defense Review (QDR) earlier this year, perhaps the new Climate Change Adaptation Roadmap (PDF) will drive the point home. Some of the content is roughly the same, but that title sure makes it sound more desperate.
The gist is that the Pentagon’s futurists foresee a world where our changing climate has tremendous real-world effects, and they want to be ready. Lots of people know the climate is changing, but given the Pentagon’s budget, it’s nice to know they are preparing to protect us from things that might actually harm us …In the 2014 CCAR, the Secretary of Defense, Chuck Hagel, writes that the Department of Defense will focus on just those sorts of threats:
A changing climate will have real impacts on our military and the way it executes its missions. The military could be called upon more often to support civil authorities, and provide humanitarian assistance and disaster relief in the face of more frequent and more intense natural disasters. Our coastal installations are vulnerable to rising sea levels and increased flooding, while droughts, wildfires, and more extreme temperatures could threaten many of our training activities. Our supply chains could be impacted, and we will need to ensure our critical equipment works under more extreme weather conditions. Weather has always affected military operations, and as the climate changes, the way we execute operations may be altered or constrained.
Unless, of course, you’re a numbnut Republican or one of the remaining cowardly lions known as Blue Dog Democrats. No action is preferable to delayed action as far as they are concerned. Not that Hagel is much of an advocate when he prates about scientists “converging” towards consensus. Almost as stupid as saying we’re fairly certain astronomers are nearing the day when they can confirm the Earth ain’t flat. Since they’re afraid of offending folks worrying about falling off the edge.
The plan is laid out in some detail in the 20-page PDF that talks about how recurrent flooding is already affecting the Hampton Roads area of Virginia, “which houses the largest concentration of US military sites in the world” (page 2) and how “climate change will have serious implications for the Department’s ability to maintain both its built and natural infrastructure, and to ensure military readiness in the future” (page 8).
The Pentagon is also aware that it will likely need to conduct more humanitarian missions after natural disasters and it will need to have its weapons work no matter what the weather is like out there. We’ll see if the message is heard this time.
Thanks, Mike, great minds and etc.
The plight of thousands of walruses forced to crowd on to an Alaska beach because of disappearing sea ice has set off an all-out response from the US government to avoid a catastrophic stampede.
The Federal Aviation Authority has re-routed flights, and local communities have called on bush pilots to keep their distance in an effort to avoid setting off a panic that could see scores of walruses trampled to death…
Curiosity seekers and the media have also been asked to stay away.
An estimated 35,000 walruses were spotted on the barrier island in north-western Alaska on 27 September by scientists on an aerial survey flight.
The biggest immediate risk factor for the walruses now is a stampede – especially for baby walruses – but they have been facing a growing threat from climate change, the scientists said.
The extraordinary sighting – the biggest known exodus of walruses to dry land ever observed in the Arctic under US control – arrived as the summer sea ice fell to its sixth lowest in the satellite record last month.
“Those animals have essentially run out of offshore sea ice, and have no other choice but to come ashore,” said Chadwick Jay, a research ecologist in Alaska with the US Geological Survey.
Read the whole sad article.
The only animal that our politicians worry about is the bloodsuckers who fund their endless election campaigns.