Climate Change
gregladen | January 7, 2012In a world first, University of Queensland and CSIRO scientists have measured the relationship between current climate, climate change and habitat loss on plants and animals on a global scale.
Their results, published recently in Global Change Biology indicate that areas with high temperatures and where average rainfall has decreased over time increase the chance of a species being negatively affected by habitat loss and fragmentation.
"Human population growth has caused significant habitat degradation across the globe, typically in support of agriculture and urban development," lead…
gregladen | December 15, 2011I've decided to update this blog entry (20 Dec 2011) because it occurs to me that certain things could be misinterpreted, in no small part because of the common language that separates us across various national borders, and differences in the way debate and concepts of free speech operate in different lands.
I want to make it clear that I do not think that the blogger "TallBloke" a.k.a. Roger Tattersall has broken British law. British authorities are obviously vigorously investigating what might be a criminal act, what might be an ethical violation, what might be a mere violation of…
gregladen | December 7, 2011I'm enjoying James Lawrence Powell's book "The Inquisition of Climate Science" Powell's book specifically addresses the clilmate change denialist movement and the global warming deniers themselves, and does so severely. He documents and discusses who is paying for climate change denialism documents the lack of scientific credenntials of the denialists, and outlines and describes in detail events such as "climate gate."
The book is exceptionally well documented and could actually be used as a supplementary text in a class on science policy or science and society.
Author's bio from the…
gregladen | November 29, 2011Bret Stephens does not mind looking like an idiot. Today, he published a column in the Wall Street Journal that is full of snark and devoid of thought, ill considered, misleading, moronic and in the end, embarrassing. It is a classic case of irresponsible journalism. Someone sent me the link and I swear, I checked twice while reading the piece to see if I had landing on TheOnion.com. I can't believe the Wall Street Journal published this.
I think it would have been impossible for a paper like the WSJ to publish a piece like this had main stream media not gotten rid of most of their science…
gregladen | November 22, 2011For now, a press release. More later:
WASHINGTON (Nov. 22, 2011)--In an apparent effort to discredit climate science, hackers again posted stolen emails from leading climate scientists online today, just days ahead of a United Nations climate meeting. According to the University of East Anglia in the United Kingdom, the emails released today are part of the same batch that was stolen from the university years ago. Only some of those emails were released in November 2009. Since then, multiple investigations exonerated scientists who had their emails stolen of misconduct.
"These leftover…
gregladen | November 19, 2011This is a bit long but you will benefit from watching all of it. It gets extra hot at 31:30.
I love the look on that woman's face at 31:38 and again at 31:47. LOL.
This particular member of congress, Don Young from Alaska, needs to get unelected. Frank J. Vondersaar seems to be the guy running against him, and this seems to be his web site. You can donate money to help Frank's campaign here.
I was originally made aware of this testimony from a blog post at Get Energy Smart blog, HERE. Please go check that out.
gregladen | November 14, 2011Hot off the presses (stolen summarily from Here). This land temperature anomoly video showing both the growth of the global dataset and global warming was shown by the BEST group to Congress just a few moments ago.
gregladen | November 11, 2011Here's the talk:
And here's the web site.
Eventually, there will probably be a book.
gregladen | November 2, 2011You've heard about "ClimateGate." ClimateGate was a very successful but illegal campaign by anti-science to discredit climate science and climate scientists. Rest assured, the climate science is fine and the climate scientists are just trying to do their jobs, and doing quite well at that. Nonetheless, a combination of inaccurate representation of the contents of various emails written between climate scientists and what amounts to unethical treatment of climate science by the press resulted in a shift among the general populous in the US from about half of the people thinking that Global…
gregladen | October 27, 2011This is the biggest thing since Justin Beiber's haircut! Video below the fold.
The Daily Show with Jon StewartGet More: Daily Show Full Episodes,Political Humor & Satire Blog,The Daily Show on Facebook
gregladen | October 26, 2011You'll remember that I recently wrote up Shawn Otto's talk at The Loft. The talk was filmed and is now a major motion picture!
Now that you've seen the talk, here's your list of things to do:
Buy the book here.
Sign on to Science Debate.org here
Sign the American Science Pledge here
Join the Republican Party. Oh, and the NRA too!
gregladen | October 20, 2011Urban areas can be warmer than surrounding non-urban areas because there is a lot of combustion, pavement and other structure can collect solar heat and retain it for a while, and other factors. It is not uncommon to look at a weather map where conditions for precipitation are marginal, and everywhere but the urban zone, or only the urban zone and nothing else, is showing a weather phenomenon. Because people and airports (where weather is very important) are located in or very near urban areas, it stands to reason that a lot of the data used to estimate global temperatures would be affected…
gregladen | October 19, 2011
Fool Me Twice
Fool Me Twice: Fighting the Assault on Science in America" was officially released last night in Minneapolis with appropriate fanfare and celebration. Everyone who gets to know Shawn likes him from the start and quickly learns to respect him and eventually hold him with a certain amount of well-earned awe, and like any book, we've all seen this one coming for quite some time. (I have an old pre-release copy in which every page is "00" but, surprisingly, the front cover is just like the final form.)
Shawn gave a talk at the release party, but since he is held in such high…
gregladen | October 13, 2011...I'd like to talk about an observation I made while writing for a now defunct monthly rag about global warming back in the early 1990s, and have always wanted to pursue formally, as a research project. Since I've not gotten to it yet, I thought it might be fun to outline the idea more informally, to give you, literally, a sketch or two that makes the point....
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gregladen | October 12, 2011Rapid climate change can cause species extinction. But if a species is highly mobile or wide-ranging, then that effect may be attenuated. And, more rapid climate change would be more serious a problem than less rapid climate change. Therefore, there should be a relationship between species mobility (migration) and the rate, or velocity, of climate change vis-a-vis extinction. This is a nice set of hypotheses which have been tested in a recent paper. The abstract:
The effects of climate change on biodiversity should depend in part on climate displacement rate (climate-change velocity) and…
gregladen | October 10, 2011My first job as an archaeologist in Boston (having moved there from New York) had to do with Deer Island, the northern of two islands that separate Boston's Inner and Outer Harbors. The actual archaeology was uninteresting but the historical research was fascinating. Among the things I learned is that Boston's Inner Harbor regularly froze over. It no longer does. When the Continental Army placed the British in Boston under Siege at the beginning of the Revolution, the idea of holding off an assault until the harbor froze over was routine. No one expected the harbor to not freeze over.…
gregladen | September 25, 2011There was a poll.
On climate change, 69% of respondents said that they believe that "there is solid evidence that the average temperature on earth has been getting warmer over the past few decades," with 26% saying that they did not believe it, 2% volunteering that there is some or mixed evidence, and 3% saying that they didn't know or refusing to answer the question. Among those who believed that there is evidence (whether solid or mixed), 64% said that "[c]limate change is caused mostly by human activity such as burning fossil fuels" came closest to their view, while 32% preferred "[c]…
gregladen | September 19, 2011In order to do good climate science, you have to understand and control for the sources of variation in the system. In any system that involvs metric change over time, there are four sources of variation:
1) Measurement or observational error (goofs, inaccuracies, bad calibration). The speed was 23 feet per second but the instrument read 22.5 or the observer wrote down 32 by accident, etc.
2) Internal (secular, natural) variation. If A causes changes in B over time, variation in B that would have happened anyway don't count in understanding the A-B link.
3) Causal relationship (causal…
gregladen | September 19, 2011I want to say a word about what a proxyindicator is. And isn't.
I noticed that the term is not in some, perhaps many, dictionaries, so I guess this leaves me free to do what I want with it! But wait, the term "proxy" is of course in the dictionary. It is an ancient short version of the word "procuracy" which is the authority to act for another. Thus, a proxy vote. Proxyindicator (or proxy indicator) is a term widely used in climate science though it is used in many other fields as well to refer to a measurement that is indirect, or more accurately, that stands in for the direct measurement…