Category: Global Warming

Utilities Shifting Back to Fossil Fuels to Reduce Electricity Prices

(p. B1) KEADBY, England — A wind farm here, along the River Trent, cranks out enough clean electricity to power as many as 57,000 homes. Monitored remotely, the windmills, 34 turbines each about 400 feet high, require little attention or maintenance and are expected to produce electricity for decades to come.
“They’re very well behaved,” said Sam Cunningham, the wind farm’s manager, as she drove around the almost three-square-mile site.
The owner of the wind farm, the British electricity company SSE, has been betting big on turbines as well as other renewables for years, with multibillion-dollar investments that have made the utility the country’s leading provider of clean power. In theory, last year’s United Nations climate accord in Paris should have been a global validation of the company’s business strategy.
But instead of doubling down, the utility is rethinking its energy mix, reconsidering plans for large wind farms and even restarting a mothballed power plant that runs on fossil fuel.
The moves reflect the existential debate faced by many major power companies, as they grapple with real-world energy economics and shifts in government policy. The calculus for fossil fuels can be more favorable at a time when energy prices are low and countries like Britain are rethinking subsidies on renewables to keep electricity prices down.”

For the full story, see:
STANLEY REED. “Clean Power Muddied by Cheap Fuel.” The New York Times (Sat., FEB. 20, 2016): B1 & B5.
(Note: the online version of the story has the date FEB. 19, 2016 and has the title “In Britain, a Green Utility Company Sees Winds of Change.”)

The Roles of Bad Luck and Periodicity in Species Extinctions

To the extent that bad luck, and periodically recurring natural causes, explain species extinctions, the role of humans in causing extinctions may be less than is sometimes assumed.

(p. A21) Dr. Raup challenged the conventional view that changes in diversity within major groups of creatures were continuous and protracted, and advanced the theory that such changes can be effected by random events.

And he questioned the accepted notion that biodiversity — that is, the number of extant species — has vastly increased over the past 500 million years, pointing out, among other things, that because newer fossils embedded in newer rock are easier to find than older fossils in older rock, it is possible that we simply have not uncovered the evidence of many older species whose existence would undermine the theory. His conclusion, that the data of the fossil record does not allow the unambiguous presumption that biodiversity has increased, has profound implications.
. . .
Dr. Raup’s most famous contribution to the field may have been the revelation in 1983, after a six-year study of marine organisms he conducted with J. John Sepkoski Jr., that over the last 250 million years, extinctions of species spiked at regular intervals of about 26 million years.
Extinction periodicity, as it is known, enlivened the study of huge volcanic eruptions and of changes in the earth’s magnetic field that may have coincided with periods of mass extinction. It has also given rise to numerous theories regarding the history of life, including that the evolution of myriad species has been interrupted by nonterrestrial agents from the solar system or the galaxy.
. . .
“Much of our good feeling about planet Earth stems from a certainty that life has existed without interruption for three and a half billion years,” he wrote. “We have been taught, as well, that most changes in the natural world are slow and gradual. Species evolve in tiny steps over eons; erosion and weathering change our landscape but at an almost immeasurably slow pace.”
He continued: “Is all this true or merely a fairy tale to comfort us? Is there more to it? I think there is. Almost all species in the past failed. If they died out gradually and quietly and if they deserved to die because of some inferiority, then our good feelings about earth can remain intact. But if they died violently and without having done anything wrong, then our planet may not be such a safe place.”

For the full obituary, see:
BRUCE WEBER. “David M. Raup, Who Transformed Field of Paleontology, Dies at 82.” The New York Times (Thurs., JULY 16, 2015): A21.
(Note: ellipses added.)
(Note: the online version of the obituary has the date JULY 15, 2015 and has the title “David M. Raup, Who Transformed Field of Paleontology, Dies at 82.”)

Squid, Cuttlefish and Octopus Are Thriving

(p. 9) The squids are all right — as are their cephalopod cousins the cuttlefish and octopus.
In the same waters where fish have faced serious declines, the tentacled trio is thriving, according to a study published Monday [May 23, 2016].
“Cephalopods have increased in the world’s oceans over the last six decades,” Zoë Doubleday, a marine ecologist from the University of Adelaide in Australia, and lead author of the study, said in an email. “Our results suggest that something is going on in the marine environment on a large scale, which is advantageous to cephalopods.”
Dr. Doubleday and her team compiled the first global-scale database of cephalopod population numbers, spanning from 1953 to 2013.
. . .
“When we looked at the data by cephalopod group we were like ‘Oh my God — they’re all going up,’ ” she said.
She said it was remarkable how consistent the increases were among the three cephalopod groups, which included species that swim in the open seas and creatures that scuttle through tide pools. They published their findings in the journal Current Biology.

For the full story, see:
NICHOLAS ST. FLEUR. “One Resident of the Sea, Unlike Many, Is Thriving.” The New York Times (Weds., MAY 25, 2016): A7.
(Note: ellipsis, and bracketed date, added.)
(Note: the online version of the story has the date MAY 24, 2016, and has the title “Squid Are Thriving While Fish Decline.”)

The academic Current Biology article mentioned above, is:
Doubleday, Zoë A., Thomas A. A. Prowse, Alexander Arkhipkin, Graham J. Pierce, Jayson Semmens, Michael Steer, Stephen C. Leporati, Sílvia Lourenço, Antoni Quetglas, Warwick Sauer, and Bronwyn M. Gillanders. “Global Proliferation of Cephalopods.” Current Biology 26, no. 10 (Mon., May 23, 2016): R406-R07.

Reforestation Can Absorb Much Carbon Dioxide from Fossil Fuel Energy

Matt Ridley has pointed out that agricultural innovations, such as genetically modified organisms (GMOs), allow us to grow more food on less farmland, and thus return more farmland to forests.

(p. D6) A new study reports that recently established forests on abandoned farmland in Latin America, if allowed to grow for another 40 years, would probably be able to suck at least 31 billion tons of carbon dioxide out of the atmosphere.

That is enough to offset nearly two decades of emissions from fossil-fuel burning in the region.

For the full story, see:
JUSTIN GILLIS. “In Latin America, Forests May Rise to Challenge of Carbon Dioxide.” The New York Times (Tues., MAY 17, 2016): D6.
(Note: the online version of the story has the date MAY 16, 2016, and has the title “In Latin America, Forests May Rise to Challenge of Carbon Dioxide.”)

An academic study mentioned above, is:
Chazdon, Robin L., Eben N. Broadbent, Danaë M. A. Rozendaal, Frans Bongers, Angélica María Almeyda Zambrano, T. Mitchell Aide, Patricia Balvanera, Justin M. Becknell, Vanessa Boukili, Pedro H. S. Brancalion, Dylan Craven, Jarcilene S. Almeida-Cortez, George A. L. Cabral, Ben de Jong, Julie S. Denslow, Daisy H. Dent, Saara J. DeWalt, Juan M. Dupuy, Sandra M. Durán, Mario M. Espírito-Santo, María C. Fandino, Ricardo G. César, Jefferson S. Hall, José Luis Hernández-Stefanoni, Catarina C. Jakovac, André B. Junqueira, Deborah Kennard, Susan G. Letcher, Madelon Lohbeck, Miguel Martínez-Ramos, Paulo Massoca, Jorge A. Meave, Rita Mesquita, Francisco Mora, Rodrigo Muñoz, Robert Muscarella, Yule R. F. Nunes, Susana Ochoa-Gaona, Edith Orihuela-Belmonte, Marielos Peña-Claros, Eduardo A. Pérez-García, Daniel Piotto, Jennifer S. Powers, Jorge Rodríguez-Velazquez, Isabel Eunice Romero-Pérez, Jorge Ruíz, Juan G. Saldarriaga, Arturo Sanchez-Azofeifa, Naomi B. Schwartz, Marc K. Steininger, Nathan G. Swenson, Maria Uriarte, Michiel van Breugel, Hans van der Wal, Maria D. M. Veloso, Hans Vester, Ima Celia G. Vieira, Tony Vizcarra Bentos, G. Bruce Williamson, and Lourens Poorter. “Carbon Sequestration Potential of Second-Growth Forest Regeneration in the Latin American Tropics.” Science Advances 2, no. 5 (May 13, 2016). DOI: 10.1126/sciadv.1501639

The Ridley book mentioned way above, is:
Ridley, Matt. The Rational Optimist: How Prosperity Evolves. New York: Harper, 2010.

New Fuel Cell Efficiently Both Sequesters Carbon Dioxide and Produces Energy

(p. B1) For years, FuelCell Energy has been considered a company to watch. Its technology promised to help economically reduce carbon dioxide emissions from power plants, which could help combat climate change. The Danbury, Conn., company might be able to make a difference, experts said, if only it had a partner with really deep pockets.
Now it has one.
In an agreement announced on Thursday [May 5, 2016], Exxon Mobil said it had tightened an existing relationship with FuelCell in hopes of taking the technology from the lab to the market.
. . .
The company’s fuel cells are already used to provide clean energy in about 50 locations around the world but without a connection to fossil-fuel power plants, as envisioned in the new agreement.
The fuel cells use a high-temperature molten carbonate salt mixture. Carbon dioxide flows into the fuel cell and emerges in a concentrated form that is ready for storage.
It is this idea of matching up power plants, which produce carbon dioxide, with fuel cells that are hungry for it that led to a collaboration between Exxon Mobil and FuelCell that started more than four years ago.
The result, at least so far in the laboratory, is that the fuel cells effectively isolate and compress the carbon dioxide while producing enough power to more than make up for the energy cost of capturing the carbon.

For the full story, see:
JOHN SCHWARTZ. “Exxon in Deal with Company to Advance Carbon Capture Technology.” The New York Times (Fri., MAY 6, 2016): B2.
(Note: ellipsis, and bracketed date, added.)
(Note: the online version of the story has the date MAY 3, 2016, and has the title “Exxon Mobil Backs FuelCell Effort to Advance Carbon Capture Technology.”)

Number of Monarch Butterflies Triples

(p. 11) MEXICO CITY — After years of being ravaged by severe weather and shrinking habitats, the monarch butterflies hibernating in the Mexican mountains rebounded last year, kindling cautious hope that one of the insect world’s most captivating migrations may yet survive.
The World Wildlife Fund said at a news conference here on Friday [February 26, 2016] that the orange-and-black butterflies, which fly more than 2,500 miles each year from Canada and the United States to a cluster of mountain forests in Mexico, covered about 10 acres this winter, an area more than three times as large as the space they covered last year.

For the full story, see:
VICTORIA BURNETT. “Monarch Migration Rebounds, Easing Some Fears.” The New York Times, First Section (Sun., FEB. 28, 2016): 11.
(Note: bracketed date added.)
(Note: the online version of the story has the date FEB. 27, 2016, and has the title “Monarch Butterfly Migration Rebounds, Easing Some Fears.”)

Coastlines Have Always Been Changing Features of Geography

(p. 4) The coastlines might seem like permanent features of geography. But over the past few million years, massive ice sheets expanded and receded, and seas rose and fell by hundreds of feet. Then, around 12,000 years ago, the most recent of many glacial ages ended, and seas eventually rose by 400 feet.
This is roughly where we are today.

For the full commentary, see:
PETER BRANNEN. “OPINION; Lessons From Underwater Miami.” The New York Times (Sun., APRIL 24, 2016): 4.
(Note: the online version of the commentary has the date APRIL 23, 2016.)

Global Warming Is Producing More Pleasant Weather in United States

(p. 9) CHRISTMAS in New York was lovely this year — especially for those who prefer to spend the day working on their tans. It was the city’s warmest ever, with temperatures peaking at 66 degrees.
Record-breaking temperatures are occurring with alarming frequency in the United States, but Americans are reacting with a collective shrug. In a poll taken in January, after the country’s warmest December on record, the Pew Research Center found that climate change ranked close to last on a list of the public’s policy priorities. Why?
In a paper published on Wednesday [April 20, 2016] in the journal Nature, we provide one possible explanation: For a vast majority of Americans, the weather is simply becoming more pleasant. Over the past four decades, winter temperatures have risen substantially throughout the United States, but summers have not become markedly more uncomfortable.
Of course, people’s preferences about weather vary widely. Some want a snowfall every winter, while others would rather wear sandals year-round. So we sought to develop a measure of the average American’s weather preferences. To do this, we made use of research by economists who study local population growth in the United States. They have found that Americans have been moving to places with warm winters and cool, less humid summers. We made the inference (not true in every case, but reasonable to assume in general) that Americans prefer such conditions.
Then we evaluated the changes in weather conditions that Americans have experienced over the past four decades (i.e., roughly since climate change emerged as an issue in the public sphere). Climatologists customarily report weather changes averaged over the land surface — an approach that counts changes in sparse Montana just as heavily as shifts in populous California. But because we were interested in the typical American’s exposure to weather, we took a different tack, calculating changes over time on a county-by-county basis, weighted by population.
Our findings are striking: 80 percent of Americans now find themselves living in counties where the weather is more pleasant than it was four decades ago.

For the full commentary, see:
PATRICK J. EGAN and MEGAN MULLIN. “Gray Matter; Global Warming Feels Quite Pleasant.” The New York Times (Sun., APRIL 24, 2016): 9.
(Note: bracketed date added.)
(Note: the online version of the commentary has the date APRIL 21, 2016.)

The Nature article mentioned above, is:
Egan, Patrick J., and Megan Mullin. “Recent Improvement and Projected Worsening of Weather in the United States.” Nature 532, no. 7599 (April 21, 2016): 357-60.

Arctic Sea Ice Rebuilds “a Significant Amount”

(p. A9) Using new satellite data, researchers at University College London reported in Nature Geoscience on Monday [July 20, 2015] that the total volume of sea ice in the Northern Hemisphere was well above average in the autumn of 2013, traditionally the end of the annual melt season, after an unusually cool summer when temperatures dropped to levels not seen since the 1990s.
“We now know it can recover by a significant amount if the melting season is cut short,” said the study’s lead author Rachel Tilling, a researcher who studies satellite observations of the Arctic. “The sea ice might be a little more resilient than we thought.”

For the full story, see:
ROBERT LEE HOTZ. “Arctic Ice Is Able to Rebuild, Study Says.” The Wall Street Journal (Tues., July 21, 2015): A9.
(Note: bracketed date added.)
(Note: the online version of the story has the date July 20, 2015, and has the title “Sea Ice Might Be More Resilient Than Thought.”)

Indian Government Scientists Fight Global Warming by Reducing Cow Belches

(p. A10) Let no one say that India isn’t doing its bit to fight global climate change: Government scientists are working hard to reduce carbon emissions by making cows less flatulent.
Consider the numbers: India is home to more than 280 million cows, and 200 million more ruminant animals like sheep, goats, yaks and buffalo. According to an analysis of satellite data from the country’s space program, all those digestive tracts send 13 million tons of methane into the atmosphere every year — and pound for pound, methane traps 25 times as much heat as carbon dioxide does.
. . .
Scientists at the Cow Research Institute in Mathura, around 100 miles south of New Delhi, are tinkering with cattle feed, seeking a formula that will create less gas for the cows to belch out. (That is how most of it is released, by the way; scientists say much less comes from farting.)
But a team of researchers in the southern state of Kerala is working on a long-term answer.
. . .
. . . dwarf animals, which are about one-quarter the weight of crossbred cows, produce only one-seventh as much manure and one-tenth as much methane.

For the full story, see:
ELLEN BARRY. “What in the World; Cows: India’s Reply to Global Warming.” The New York Times (Thurs., MAY 5, 2016): A10.
(Note: ellipses added.)
(Note: the online version of the story has the date MAY 3, 2016, and has the title “What in the World; India’s Answer to Global Warming; Cows That Belch Less.”)

Former Goldman Sachs Banker Predicts “Green Bubble”

(p. R5) Sustainable investing and clean energy are hot topics, but one Danish financier is warning that people might be getting carried away.
Per Wimmer, a former Goldman Sachs banker and the founder of Wimmer Financial LLP, a London-based corporate-advisory firm specializing in natural resources, foresees a “green bubble” that could have similar consequences to the dot-com and housing bubbles.
. . .
WSJ: What are the main issues behind the so-called bubble you see forming in green energy?
MR. WIMMER: Very simply put, for green energy to be truly sustainable, it must be commercially sustainable. The reality today is that when it comes to politicians allocating subsidies, it seems like they are being allocated almost religiously across the board. As long as there is a green element, then [politicians believe] it is fine and deserves funding from tax dollars. I argue that is a little unsophisticated.
We have got to look at supporting and subsidizing the technologies that stand a chance at becoming commercially independent from subsidies within a reasonable time period–about seven to 10 years.
. . .
WSJ: In your book “The Green Bubble,” you highlight infrastructure problems involved in large-scale green-energy projects in the U.S. Tell us about those.
MR. WIMMER: There are a number of challenges that green energy faces, and one [involves] infrastructure, meaning that if you were to target, say, 20% green energy including wind farms in the U.S., you would have to build an awful lot of transmission grid, which is quite expensive.
Somebody is going to have to pay for it–the taxpayer, perhaps?

For the full interview, see:
TANZEEL AKHTAR. “Renewable Energy Is a ‘Bubble,’ Says Financier.” The Wall Street Journal (Mon., Jan. 11, 2016): R5.
(Note: bold and italics, in original; ellipses, added.)
(Note: the online version of the review has the date Jan. 12 [sic], 2016,)

The book mentioned in the interview, is:
Wimmer, Per. The Green Bubble: Our Future Energy Needs and Why Alternative Energy Is Not the Answer. London, UK: Lid Publishing, 2015.