Human-caused climate change – then and now
The question of human-caused climate change – unclear now and unclear 8,000 years ago.
Tag: environment
EPA vote postponed in Senate as Reid struggles to get Democrat votes
This is a good sign: The Senate vote on restricting the power of the EPA has been postponed by Harry Reid as he struggles to get Democrat votes.
Random variations are still too large for climate models
The uncertainty of science: a paper published today in Geophysical Research Letters has concluded that the the long term random variations of the climate, sometimes lasting as long as three or four decades, are large enough to hide any actual changes to the climate. In the quote from the abstract below, the term “random walk” is jargon for a long term random fluctuation having nothing to do with climate change.
This result indicates that the shorter records may not totally capture the random variability of climate relevant on the time scale of civilizations, for which the random walk length is likely to be about 30 years. For this random walk length, the observed standard deviations of maximum temperature and minimum temperature yield respective expected maximum excursions on land of 1.4 and 2.3°C and over the ocean of 0.5 and 0.7°C, which are substantial fractions of the global warming signal.
In other words, it might simply be too soon to be making predictions about the climate, based upon the presently available data.
The secret world of doomsday shelters
Got a few hundred thousand you can spare? Why not build a doomsday bomb shelter?
The icecaps of Greenland and Antarctica: are they melting?
NASA scientists have published a paper warning that there is growing evidence that the melting at the polar caps is accelerating. From the press release:
The pace at which the polar ice sheets are losing mass was found to be accelerating rapidly. Each year over the course of the study, the two ice sheets lost a combined average of 36.3 gigatonnes more than they did the year before. In comparison, the 2006 study of mountain glaciers and ice caps estimated their loss at 402 gigatonnes a year on average, with a year-over-year acceleration rate three times smaller than that of the ice sheets.
Several things to note after reading the actual paper:
Climate science hearing changes nothing
There was a hearing in Congress today on climate science, though it apparently changed nothing: the Republican leadership in the committee is going to proceed with legislation to try to roll back the EPA regulations relating to carbon dioxide imposed by the Obama administration.
The most interesting detail I gleaned from the above article however was this quote, written by the Science journalist himself, Eli Kintisch:
The hearing barely touched on the underlying issue, namely, is it appropriate for Congress to involve itself so deeply into the working of a regulatory agency? Are there precedents? And what are the legal and governance implications of curtailing an agency’s authority in this way?
What a strange thing to write. If I remember correctly, we are a democracy, and the people we elect to Congress are given the ultimate responsibility and authority to legislate. There are no “legal or governance implications.” If they want to rein in a regulatory agency, that is their absolute Constitutional right. That Kintisch and his editors at Science don’t seem to understand this basic fact about American governance is most astonishing.
How Los Angeles’s community colleges wasted millions on green energy construction
How the head of Los Angeles’s community college construction program wasted millions on green energy construction. This quote sums up the absurdity of this environmental wet dream:
As head of a $5.7-billion, taxpayer-funded program to rebuild the college campuses, Eisenberg commanded attention. But his plan for energy independence was seriously flawed. He overestimated how much power the colleges could generate. He underestimated the cost. And he poured millions of dollars into designs for projects that proved so impractical or unpopular they were never built. These and other blunders cost nearly $10 million that could have paid for new classrooms, laboratories and other college facilities, a Times investigation found.
The problems with Eisenberg’s energy vision were fundamental. For starters, there simply wasn’t room on the campuses for all the generating equipment required to become self-sufficient. Some of the colleges wouldn’t come close to that goal even if solar panels, wind turbines and other devices were wedged into every available space.
Going off the grid did not make economic sense either. Given the cost of alternative energy technology, it would be more expensive for the district to generate all its own electricity than to continue paying utilities for power.
Weather and geology also refused to cooperate. Three solar power arrays had to be scrapped because the intended locations were atop seismic faults. Plans for large-scale wind power collided with the reality that prevailing winds at nearly all the campuses are too weak to generate much electricity. To date, a single wind turbine has been installed, as a demonstration project. It spins too slowly in average winds to power a 60-watt light bulb. [emphasis mine]
Worse, the man who forced this idiocy on the colleges still sees nothing wrong with it. And his justification illustrates how completely uneducated he is.
He cast himself as an environmental visionary and predicted that the college system would eventually achieve energy independence. “Somebody needs to be first,” he said. “If the great explorers really had a map and knew where they were going, maybe we wouldn’t have the result we have today.
The fact is that the great explorers always had a map, and worked carefully from real data. Granted, the horizon was unknown, but the explorers who succeeded all ground their exploration on reality, not fantasy.
With foolish leadership like this, it is no surprise California is about to go bankrupt.
Water and ice at the bottom of the Antarctic Ice Sheet
The uncertainty of science: Unexpectedly large amounts of flowing water and refrozen ice found at the bottom of the Antarctic icecap. Key quote:
It’s too early to know whether this new finding means that global warming will melt ice sheets slower or faster than scientists have predicted. But the work does suggest that current models of ice sheet dynamics are missing a huge factor, said glaciologist Donald Blankenship of the University of Texas, Austin. “The take-home message of this work is that [the bottom of ice sheets] can no longer be ignored” in the models, he says.
Two High-priority Climate Missions Dropped from NASA’s Budget Plans
Two high-priority climate missions dropped from NASA’s budget by the White House. And what’s most amazing: No one’s squealing!
“Removal of these missions was not what we desired and not what the administration desired, but it was a clear recognition and acknowledgement of the budget issues we face as a nation,” [said Steve Volz, associate director for flight programs at NASA’s Earth Science Division]. “It’s cleaner to be allowed to delete the scope that goes along with the dollars than to have to figure out how to do more with less.”
Another climategate whitewash
The inspector general of the Department of Commerce has just issued a review of NOAA’s response to the climategate emails and has essentially given the agency a clean bill of health. You can download the full report here [pdf].
It’s. just. another. whitewash. Let me quote just one part of the report’s summary, referring to a Freedom of Information Act (FOIA) request to NOAA in June 2007 in which the agency responded by saying they had no such documents:
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Launch of Glory postponed again
More launch news: The launch of the climate satellite Glory was postponed again today. No new launch date is set.