Showing posts with label Ralph Keeling. Show all posts
Showing posts with label Ralph Keeling. Show all posts

Sunday, June 2, 2013

The San Diego UT Profiles Scientist Ralph Keeling, But Where Is the Science?


I am left feeling that there is something a bit remiss in this story from San Diego’s UT newspaper. The story concerns the work of Ralph Keeling, who is carrying on the work of his father, the late Charles Keeling. The elder Keeling established the measurement of atmospheric carbon dioxide atop Mona Loa in Hawaii back in the 1950s. The continued observations of increasing carbon dioxide are what is known as the Keeling Curve and serve as some of the bedrock research upon which the science of global warming is based.
            As to the science of global warming, Deborah Sullivan Brennan, the writer of the story, gives us the following:

Most, but not all, scientists believe global warming is accelerating and that human activity plays a key role.

Although the curve shows a consistent upward trend, its implications for climate are the topics of ongoing debate. Uncertainties remain about carbon dioxide’s effects on weather, precipitation and other facets of climate.

Maybe I’m being too critical here, but it seems to me that Brennan is placing an emphasis on the uncertainties of global warming. “Most, but not all, scientists believe global warming is accelerating,” just strikes me as a needless way of emphasizing the beliefs of a few contrarians—many of them on the payroll of fossil fuel industries or their allied “think tanks”—who buck the scientific consensus of global warming. Nowhere in the article does Brennan mention that the world’s temperatures have risen in correspondence to the rise in CO2 that the Keeling Curve reveals. Neither is there any mention that it is the burning of fossil fuels that throws CO2 up in the air.
            Most of the article is a very pleasant profile of Ralph Keeling and his relationship with his father, describing their shared interests in music and tinkering. If that is the emphasis of the article, fine. This is from today’s paper, the Sunday paper, which usually features a lot of human interest features. I don’t object to that. But if you’re going to profile a son who is carrying on the scientific work of his father, please, in the two or three paragraphs that describe the research that they share, get the science right.
            And as far as I’m concerned the reporter buried the lead of the story. The money quote at the very end of the profile has Ralph Keeling saying: “Rising carbon dioxide is not a threat to life. No one ever claimed that. It’s just a threat to life as we know it.”
            But then again it wouldn’t have been a very good human interest Sunday paper story if the headline read: Prominent Scientist Says Global Warming Ends Life As We Know It.

Wednesday, April 24, 2013

Atmospheric CO2 Levels Soon to Pass 400 ppm


I have my clock radio set to KPBS, our local news station, and this story came on this morning right as I was trying to wake up. The Scripps Institute of Oceanography anticipates that the concentration of CO2 in our atmosphere will begin to exceed 400 parts per million by next month.
            The polar icecap will not suddenly melt and Bangladesh will not be inundated with tidal floods on the day that the 400 ppm threshold is passed, but it does mean that the goal of keeping the global temperature from rising an average of 3.6 degrees Fahrenheit will almost certainly be unmet. According to the campaign 350.org, established by author and activist Bill McKibben, scientists have estimated that 350 ppm of CO2 is the highest level of atmospheric carbon dioxide concentration that will still allow the earth to avoid substantial harm from warming.
            The radio report talked to Ralph Keeling, who is carrying on the work of his father, Charles Keeling. Working through the Scripps Institute, the elder Keeling initiated the recording of atmospheric CO2 at Mauna Loa, Hawaii in 1958. Those initially recorded levels were at 316 ppm. According to the Carbon Dioxide Information Analysis Center, which handles climate change data and information analysis for the Department of Energy, the level of atmospheric carbon dioxide in 1750, at the dawn of the industrial revolution and the mass use of fossil fuel, was 280 ppm.
            So we are passing the 400 ppm threshold; the whole world is passing the 400 ppm threshold. With our factories and automobiles we have raised the concentration of carbon dioxide by over 40 percent. It seems that this is news that should go beyond our local radio station.
            
The Keeling Curve from Scripps Institute of Oceanography