Category: Global Warming

Human Species Is Highly Adaptable to Climate Variation

(p. A15) In “Evolution’s Bite,” paleoanthropologist Peter S. Ungar follows the stories encapsulated in our enamel-coated anatomy.
Mr. Ungar’s story isn’t so much about teeth themselves as about the sweeping tale of human evolution as seen through the mouth.
. . .
Unpredictability in climate and resources, Mr. Ungar emphasizes, has made us a species adapted to variation. Drawing from the work of researchers like Elisabeth Vrba and Rick Potts, he underscores how environmental shifts influence our evolution just as they have for other animals. The invention of culture did not somehow free us from nature. Our existence and continuing evolution are still influenced by shifts in climate and their effects. Humans didn’t become locked into just one narrow mode of life but rather became a flexible species as comfortable above the Arctic Circle as on the equator. “Climate change,” he writes, “drove human evolution, in large part by swapping out food options available on the biospheric buffet.”
This new story–that humans became adapted to the variability of the world rather than any one set of conditions–hasn’t had time to become pop-culture canon just yet. Images of Man the Hunter stepping out onto the savanna in search of big game still dominate. “The story used to be simpler,” Mr. Ungar writes, when it seemed that “the spreading savanna coaxed our ancestors down from the trees, and the challenges it brought made them human.” All the same, the mounting swell of research doesn’t show a slow and steady transition from a chilly Ice Age world to the warmer one we know today. Instead, Mr. Ungar points out, temperatures dipped and spiked in a haphazard pattern prior to our influence on the climate, having an overall trajectory that we can detect now but that probably would have seemed simply chaotic to the people and creatures living through it.

For the full review, see:
Brian Switek. “BOOKSHELF; Chewing Over History.” The Wall Street Journal (Weds., May 31, 2017): A15.
(Note: ellipsis added.)
(Note: the online version of the review has the date May 30, 2017, and the title “BOOKSHELF; Chewing Over Humanity’s History.”)

The book under review, is:
Ungar, Peter S. Evolution’s Bite: A Story of Teeth, Diet, and Human Origins. Princeton, NJ: Princeton University Press, 2017.

Geoengineering for the Timid

(p. A15) In 2012, a man named Russ George, working with the Haida people of British Columbia, tried an experiment. From the back of a rusty fishing vessel he spread 120 tons of iron-rich dust on the surface of the North Pacific Ocean. The result was a bloom of plankton, visible by satellite–and a quadrupling of the salmon catch along the coast of the Northeast Pacific. This may or may not have been a coincidence, but it was the intended result.
. . .
Far from being thanked, Mr. George was pilloried for failing to get permission for this rogue “geoengineering” gesture. A second experiment by German scientists in the Antarctic Ocean was stopped by the German government under pressure from environmentalists. A United Nations treaty–the London Convention on the Prevention of Marine Pollution–was changed to forbid “any activity undertaken by humans with the principal intention of stimulating primary productivity in the oceans.” This seems a strangely defeatist prohibition, given that a more productive ocean would not only feed more people (and whales) but also sequester more carbon dioxide from the air, through photosynthesis by plankton, potentially providing a self-financing way to prevent possible future climate change.
. . .
. . . Mr. Biello is a writer from Scientific American and is impeccably sympathetic to the environmental movement. The result is a book that explores an intriguing topic but lacks a hard edge or even a clear message.
. . .
Just in the choice of stories to tell, though, the book leans toward the notion that the solution to our environmental challenges will come from technology, and in that sense it is most welcome. Technical fixes are anathema to many environmentalists, but it has been obvious for some time now that innovation and adaptation are the way we will reverse or cope with pollution, habitat loss and climate change. By contrast, a retreat to some golden age of simpler lives more dependent on organic and natural resources is neither possible nor likely to be good for nature: Seven billion people going back to nature would leave nature in a parlous state. The way we will save the planet is by high-tech invention and prosperity, not low-tech simplification and asceticism.

For the full review, see:
Matt Ridley. “BOOKSHELF; Ruling Over Our Dominion; We are living in the Anthropocene: an era when human beings have changed the planet in ways that will be obvious in the geological record.” The Wall Street Journal (Thurs., Nov. 17, 2016): A15.
(Note: ellipses added.)
(Note: the online version of the review has the date Nov. 16, 2016.)

The book under review, is:
Biello, David. The Unnatural World: The Race to Remake Civilization in Earth’s Newest Age. New York: Scribner, 2016.

Large Indian Tribes Hurt by Obama Regulations on Coal

(p. 1) . . . some of the largest tribes in the United States derive their budgets from the very fossil fuels that Mr. Trump has pledged to promote, including the Navajo in the Southwest and the Osage in Oklahoma, as well as smaller tribes like the Southern Ute in Colorado. And the Crow are among several Indian nations looking to the president’s promises to nix Obama-era coal rules, pull back on regulations, or approve new oil and gas wells to help them lift their economies and wrest control (p. 14) from a federal bureaucracy they have often seen as burdensome.
The president’s executive order on Tuesday [March 28, 2017], which called for a rollback of President Barack Obama’s climate change rules, is a step toward some of these goals.
At the tribes’ side is Ryan Zinke, who as the new interior secretary is charged with protecting and managing Indian lands, which hold an estimated 30 percent of the nation’s coal reserves west of the Mississippi and 20 percent of known oil and gas reserves in the United States.
In a recent interview, Mr. Zinke noted that he was once adopted into the Assiniboine and Sioux tribes and said he would help native nations get fossil fuels to market.
“We have not been a good partner in this,” he said. “The amount of bureaucracy and paperwork and stalling in many ways has created great hardship on some of the poorest tribes.
“A war on coal is a war on the Crow people,” he continued. “President Trump has promised to end the war.”

For the full story, see:
JULIE TURKEWITZ. “Tribes That Live Off Coal Hold Tight to Trump’s Promises.” The New York Times, First Section (Sun., APRIL 2, 2017): 1 & 14.
(Note: ellipsis, and bracketed date, added.)
(Note: the online version of the story has the date APRIL 1, 2017, and has the title “Tribes That Live Off Coal Hold Tight to Trump’s Promises.”)

Rain and Snow End California Drought

(p. A18) After six years of a prolonged drought in California, it is all but over. On Friday [April 7, 2017], Gov. Jerry Brown ended the drought emergency for the vast majority of the state. The drought had reduced Folsom Lake, a major reservoir in Northern California, to less than a third of its capacity in 2015, and all but wiped out the Sierra Nevada snowpack.
. . .
But the state’s hydrologic picture brightened significantly beginning in October 2016, when a series of massive storms drenched Northern California. The rain and snow continued through the winter, swelling major reservoirs to the point that officials were forced to make releases.
Meanwhile, the state’s snowpack made an impressive recovery. As of Friday, the water content in the state’s snowpack was about 160 percent of what is considered normal for this time of year. By comparison, the snowpack was reported as about 5 percent of average the day Mr. Brown stood on the barren field and ordered mandatory water conservation.

For the full story, see:
MATT STEVENS. “Drenched by Winter Rain, California Is Told ‘Drought’s Over’.” The New York Times (Sat., APRIL 8, 2017): A18.
(Note: ellipsis, and bracketed date, added.)
(Note: the online version of the story has the date APRIL 7, 2017, and has the title “California, Drenched by Winter Rain, Is Told ‘Drought’s Over’.”)

Geoengineering Could Cheaply and Quickly Counter Global Warming

(p. B1) Last month, scholars from the physical and social sciences who are interested in climate change gathered in Washington to discuss approaches like cooling the planet by shooting aerosols into the stratosphere or whitening clouds to reflect sunlight back into space, which may prove indispensable to prevent the disastrous consequences of warming.
Aerosols could be loaded into military jets, to be sprayed into the atmosphere at (p. B4) high altitude. Clouds at sea could be made more reflective by spraying them with a fine saline mist, drawn from the ocean.
. . .
. . . , geoengineering needs to be addressed not as science fiction, but as a potential part of the future just a few decades down the road.
“Today it is still a taboo, but it is a taboo that is crumbling,” said David Keith, a noted Harvard physicist who was an organizer of the conclave.
. . .
Geoengineering would be cheap enough that even a middle-income country could deploy it unilaterally. Some scientists have estimated that solar radiation management could cool the earth quickly for as little as $5 billion per year or so.

For the full commentary, see:
Porter, Eduardo. “ECONOMIC SCENE; To Curb Global Warming, Science Fiction May Become Fact.” The New York Times (Weds., APRIL 5, 2017): B1 & B4.
(Note: ellipses added.)
(Note: the online version of the commentary has the date APRIL 4, 2017, and has the title “ECONOMIC SCENE; To Curb Global Warming, Science Fiction May Become Fact.”)

Since 1880 North America Is Warmer by One and a Half Degrees Fahrenheit

(p. A23) Anyone who has read the 2014 report of the Intergovernmental Panel on Climate Change knows that, while the modest (0.85 degrees Celsius, or about 1.5 degrees Fahrenheit) warming of the earth since 1880 is indisputable, as is the human influence on that warming, much else that passes as accepted fact is really a matter of probabilities. That’s especially true of the sophisticated but fallible models and simulations by which scientists attempt to peer into the climate future. To say this isn’t to deny science. It’s to acknowledge it honestly.

For the full commentary, see:
Stephens, Bret. “Climate of Complete Certainty.” The New York Times (Sat., APRIL 29, 2017): A23.
(Note: the online version of the commentary has the date APRIL 28, 2017.)

U.S. Science Agencies Omit Margin of Error in Warming Stats

(p. A13) The year 2016 was the warmest ever recorded–so claimed two U.S. agencies, NASA’s Goddard Institute for Space Studies and the Commerce Department’s National Oceanic and Atmospheric Administration. Except it wasn’t, according to the agencies’ own measures of statistical uncertainty.
Such fudge is of fairly recent vintage. Leaving any discussion of the uncertainty interval out of press releases only became the norm in the second year of the Obama administration. Back when he was presenting the 2008 numbers, NASA’s James Hansen, no slouch in raising climate alarms, nevertheless made a point of being quoted saying such annual rankings can be “misleading because the difference in temperature between one year and another is often less than the uncertainty in the global average.”
Statisticians wouldn’t go through the trouble of assigning an uncertainty value unless it meant something. Two measurements separated by less than the margin of error are the same. And yet NASA’s Goddard Institute, now under Mr. Hansen’s successor Gavin Schmidt, put out a release declaring 2014 the “warmest year in the modern record” when it was statistically indistinguishable from 2005 and 2010.
. . .
. . . other countries like the U.K. and Japan also do sophisticated monitoring and end up with findings roughly similar to the findings of U.S. agencies, yet they don’t feel the need to lie about it. For instance, the U.K. Met Office headlined its 2016 report “one of the warmest two years on record.” A reader only had to progress to the third paragraph to discover that the difference over 2015 was one-tenth the margin of error.

For the full commentary, see:
HOLMAN W. JENKINS, JR. “Change Would Be Healthy at U.S. Climate Agencies; In the Obama era, it was routine for press releases to avoid mentioning any margin of error..” The Wall Street Journal (Mon., Feb. 4, 2017): A13.
(Note: ellipses added.)

British Government Environmentalists Increase London Air Pollution

(p. A4) London is choking from record levels of pollution, much of it caused by diesel cars and trucks, as well as wood-burning fires in private homes, a growing trend.
. . .
London’s air pollution today is different from seven decades ago, and more insidious. No longer thick as “pea soup,” as it was traditionally described, the city’s air is now laced with nitrogen dioxide — a toxic gas mostly produced by vehicles with diesel engines.
. . .
The current problem is, in part, an unintended consequence of previous efforts to aid the environment.
The British government provided financial incentives to encourage a shift to diesel engines because laboratory tests suggested that would cut harmful emissions and combat climate change. Yet, it turned out that diesel cars emit on average five times as much emissions in real-world driving conditions as in the tests, according to a British Department for Transport study.
“No one at the time thought of the consequences of increased nitrogen dioxide emissions from diesel, and the policy of incentivizing diesel was so successful that an awful lot of people bought diesel cars,” said Anna Heslop, a lawyer at ClientEarth, an environmental law firm that last year forced the British government to produce a better plan to improve air quality.
. . .
Bob Miller, 69, a cabdriver who has crisscrossed London for 30 years, wasn’t convinced. He has lost faith in recommendations by policy makers and experts, he said.
“We were told how wonderful diesel is, how they were supposed to be cleaner than petrol,” Mr. Miller said, idling his cab in heavy traffic with the window open.
“The experts make the rules, then they’re wrong,” he said, shaking his head. “I give up.”

For the full story, see:
KIMIKO de FREYTAS-TAMURA. “A Push for Diesel Leaves London Gasping Amid Record Pollution.” The New York Times (Sat., FEB. 18, 2017): A4.
(Note: ellipses added.)
(Note: the online version of the story has the date FEB. 17, 2017.)

Coastal Damage Caused by Storm Surges at High Tide, Not by Tiny Rise in Sea Levels

(p. A11) When Teddy Roosevelt built his Sagamore Hill on Long Island, he did so a quarter mile from shore at an elevation of 115 feet not because he disdained proximity to the beach or was precociously worried about climate change. The federal government did not stand ready with taxpayer money to defray his risk.
Estimates vary, but sea levels may have risen two millimeters a year over the past century. Meanwhile, tidal cycles along the U.S. east coast range from 11 feet every day (in Boston) to two feet (parts of Florida).
On top of this, a “notable surge event” can produce a storm surge of seven to 23 feet, according to a federal list of 10 hurricanes over the past 70 years.
We should not exaggerate the degree to which homeowners are being asked to shoulder their own risks. Washington is doling out five-figure checks to Jersey homeowners to raise houses on pilings to reduce the federal government’s future rebuilding costs. But, to state the obvious, normal tidal variation plus storm surge is the danger to coastal property. Background sea-level rise is a non-factor. A FEMA study from several years ago found that fully a quarter of coastal dwellings are liable to be destroyed over a 50-year period.
Though it pleased New York Gov. Andrew Cuomo to pretend Superstorm Sandy in 2012 was caused by global warming, the storm wasn’t even a hurricane by the time it hit shore–it just happened to hit at peak tide. Sure, certain people in Florida and elsewhere like to conflate the two. It’s in their interests to do so.

For the full commentary, see:
HOLMAN W. JENKINS, JR. “Shoreline Gentry Are Fake Climate Victims.” The Wall Street Journal (Sat., Nov. 26, 2016): A11.

Northwest Passage Cruise Ship Sells Out in Three Weeks

(p. B1) Norwegian explorer Roald Amundsen took three years in the early 1900s to complete the first successful navigation of the Northwest Passage, the ice-choked arctic sea route connecting the Pacific and Atlantic. Only in 1944, did a ship make it through in a single year.
This summer, the Crystal Serenity–a 820-foot-long, 13-deck cruise ship with a casino, a movie theater, six restaurants and a driving range–is planning to steam through in less than a month.
Operated by Los Angeles-based Crystal Cruises LLC, the trip sold out in three weeks, with some 1,000 would-be passengers paying about $22,000 each.
. . .
About 200 ships have traversed the 900-mile route since Amundsen’s voyage between 1903 and 1906. But most of those have gone through just in the last decade as ocean warming diminishes ice cover further, and for longer, during the summer months.

For the full story, see:
Costas Paris. “Luxury Cruise to Conquer Northwest Passage.” The Wall Street Journal (Weds., May 11, 2016): B1-B2.
(Note: ellipsis added.)
(Note: the online version of the story has the date May 10, 2016, and has the title “Luxury Cruise to Conquer Northwest Passage.”)

Glorious Colors of Fall Leaves Last Longer with Global Warming

(p. A20) IONA, Nova Scotia — A century ago, the flaming fall foliage in Nova Scotia would have long faded by early November. But today, some of the hills are still as nubbly with color as an aunt’s embroidered pillow.
Climate change is responsible, scientists say. As the seasonal change creeps later into the year, not only here but all across the northern United States and Canada, the glorious colors will last longer, they predict — a rare instance where global warming is giving us something to look forward to.
“If climate change makes eastern North America drier, then autumn colors will be spectacular, as they are on the Canadian Shield in dry summers, especially the red maples,” said Root Gorelick, a biology professor at Carleton University in Ottawa. The Canadian Shield is a broad ring of forests and ancient bedrock that extends hundreds of miles from the shores of Hudson Bay.
Over the very long term, the warming planet may have a negative effect on fall foliage, but even then any adverse impact is uncertain. It is not just an aesthetic question, but an economic one as well: The changing colors drive billions of dollars in “leaf peeping” tourism in Canada and the United States.
“From a peeper’s point of view, it’s good news,” said Marco Archetti, the lead author of a 2013 paper at Harvard on predicting climate change impacts on autumn colors in New England.
. . .
The Harvard study, which looked at the percentage and duration of autumn color in Harvard Forest in central Massachusetts from 1993 to 2010, predicted that with current climate change forecasts, the duration of the fall display would increase about one day for every 10 years. Look at it this way: Children born this year could have an extra week to enjoy the colors by the time they are 70.
The study further analyzed data for trees that turn red: red maple, sugar maple, black gum, white oak, red oak, black oak, black cherry and white ash. Only in white ash trees did the duration and full display of color decrease. In the others, the amount and duration of red leaves increased over the course of 18 years.
The Harvard study used data collected by John O’Keefe, the museum coordinator, now emeritus, at Harvard Forest, who made his observations by eye — estimating the percentage of colored leaves for each species and the duration from when 10 percent of a tree’s leaves turned color to when 90 percent had turned.
Those observations have been validated by Andrew Richardson, a professor of evolutionary biology at Harvard, who has since set up a network of 350 “phenocams,” cameras that quantify the duration and intensity of autumn colors in locations from Alaska to Hawaii, Arizona to Maine and up into Canada.
“John’s direct observations on the ground line up pretty well with the camera data,” Professor Richardson said.

For the full story, see:
CRAIG S. SMITH. “How a Changing Climate Helps Add Color to a Leaf Peeper’s Paradise.” The New York Times (Thurs., NOV. 3, 2016): A20.
(Note: ellipsis added.)
(Note: the online version of the article has the date NOV. 2, 2016, and has the title “How a Changing Climate Is Shaping a Leaf Peeper’s Paradise.” )