25 March 2015

How to pick cherries

The not-so fine art of contriving to support the conclusion you predetermined is cherry picking.  Really not a good thing for a scientist to do or condone, but pretty common in politics.  The latest example comes from politician (now presidential candidate) Ted Cruz, being condoned/defended (even praised) by scientist Judy Curry.

Suppose you're interested in global warming, just in understanding what's going on -- not in 'proving' that there is warming, or cooling, or that temperatures are unchanged.  You're an actual skeptic -- looking for evidence and where the evidence leads.  One thing you learn pretty quickly in your skeptical explorations is that you need 20-30 years of data to define a global climate temperature.  Shorter than that, and your answer depends sensitively on your averaging period.  As a skeptic, you don't want such unreliable methods.  Apply the 30 years to a number of data records (below), and you get the answer that climate has been warming, 1.3-1.7 K/century (2.3-3.1 F).

As a cherry-picker, committed to finding a particular answer, however, you go straight for the option of using short spans -- look for a record length that will give you the answer you want, then ignore the fact that your answer changes if a couple years are added or subtracted.

05 March 2015

Merchants of Doubt Movie

Do go see the Merchants of Doubt Movie.  Los Angeles and New York March 6 opening, Chicago, San Francisco, and Washington DC the 13th.  More widely starting the 20th of March.  The movie is inspired by the book of the same name, about how it is established industries can sell Doubt even in areas where the science is pretty well established.

The movie is not the book, nor does it make the mistake of trying to put the book on screen.  But it does pick up many of the threads, and, most importantly, shows well how the Merchants of Doubt ply their trade.  And it does so in an engaging way.  One element of that being the extended visual, and practical, illustration of close up magic.  Sleight of hand, misdirection, using shills (3 card monte was the example for this) all have their analogues for the Merchants of Doubt.

The phrase itself derives from the tobacco industry, PR firm, which concluded that doubt was their product -- they could not argue the science, but they could still cast doubt.  Decades later (not from the movie) this was echoed by Frank Luntz, who also observed "A compelling story, even if factually inaccurate, can be more emotionally compelling than a dry recitation of the truth," Mr Luntz notes in the memo.

We see this item primarily through the flame retardants theme in the move.  A doctor testifies to legislators about the harrowing death of a child, burned on the parts of its body that were on the non-flame-retardant pillow as opposed to the flame-retarded mattress.  Once the testimony is given, the bill to lift requirements for the chemicals is promptly defeated.  Except, it turns out, and the doctor confirms, that the events in his testimony never actually happened.  But his story was far more compelling that mere recitation of facts about the (in)effectiveness of the fire-retardants.  And that's the important part.  (? For the doctor, at least, and his funders.  See who that turns out to be.)

How did we get to fire retardants from tobacco?  Cancer is a long stretch from fire, after all.  But that's part of the tangled web of merchandising Doubt.  Burning cigarettes start fires.  Tobacco companies could have been told to develop cigarettes that didn't burn so long unattended.  Rather than do so (potentially expensive), they pushed the argument, successfully, that the problem was the couches/mattresses/pillows.  They shouldn't catch fire so easily; that was the real problem.  If you can convince people that it's the fault of couches for letting themselves be burned, rather than of the cigarettes for burning couches (thence homes and people), there are few limits to what you can convince people of.

That's one of the methods of the PR flacks, and those methods are what the movie explores in a number of difference stories and ways.  Climate looms large in the movie, larger than in the book.  That renders it a little hard for me to say much about -- I have too much first hand experience with the people and events.  What I can say from that first hand knowledge (or at worst second hand) is that it represents well how the people in the climate 'debate' actually talk.  And I can say with some confidence that it represents them fairly.  That's true whether it's Marc Morano (who's quite up front about the fact that he is attacking the scientists, not the science, and is pleased about the hate-mail that scientists get after he releases their email addresses) or Katharine Hayhoe (receiving end of some of that hate-mail, a scientist working on understanding climate who has been talking publicly to groups about creation care).  Katharine is also a conservative evangelical Christian.  One of the themes in the moving being about tribalism, so such identifiers sometimes are important.

I don't give away much, the meat is how you get to this point, in observing that I also like Producer/Director Robert Kenner's choice to end the movie with some optimism from Bob Inglis (6 time congressman elected from very conservative part of very conservative South Carolina) as to his belief that the problems of climate change are real (which got him massacred in his last primary) and can be addressed.  The Merchants of Doubt have their successes, as does the magician.  But, as more people see how the trick is done, the fewer who fall for it.  I hope.  See the movie and let me know in the comments what you think.

Since I was at a special preview, I'll write a separate note about that, and about some of the discussion we had with Kenner after the movie.

In the mean time, some potentially useful other links:
Movie's official web site with release dates
Rotten Tomatoes

02 March 2015

Better thoughts

During my weird week, I also had a couple signs of beauty.  Both from my nieces, and one in the midst of sadness.  If I haven't reminded you before: I've got great nieces!

First, from my niece Kristen, whom you've heard from before, an observation about science/scientists:
Somehow I was chosen as one of two students who got to share dinner at an excellent Cuban place (which the school paid for) with most of the chemistry professors and the person who gave a presentation to us tonight about his job as an environmental consultant. So much knowledge was tossed around at the dinner table oh my gosh I feel so lucky to be surrounded by such an interesting group of people. I also feel really proud to be going to a school where the professors and students can eat and be nerds together like one happy dork family :'D
Second, following the death of Leonard Nimoy (best known as Spock, from Star Trek), my other niece Madeline:
Losing our beloved Mr. Spock left me with an empty part of my heart, being that my best friend and I call each other Kirk and Spock. In the words of that same friend we must not think of the fact he is gone, but to remember all of the good times we had with him.

01 March 2015

A weird week

Between people denying that there is a correlation between CO2 and temperature and several other items, last week was just plain weird for me.  A few pieces of, I hope, some more general interest.

One is, of course, the reminder that CO2 is indeed correlated with temperature.  And, of course, since that original article is pushing 6 years old, I should make an update.  (Clue: The conclusions won't change much -- 6 years isn't large compared to the 50+ already used.)  But also the reminder that I really should write that note I've had in mind about just what correlation is.

Then there was the (different) anonymous also on twitter who seemed to think it was terrible that a comment was made equating people on 'the other side' were as bad or worse than the worst mass murderers.  I don't hold with such comments, and the blog in question was for a group that I'm a member of (National Center for Science Education.  But, by the time I saw the tweet from the anonymous the next morning the comment had been deleted.  I agree with the deletion -- if we are talking science, there's no need or point to equating others to mass murderers.  The anonymous was continuing to complain even after the comment was deleted, though.  Don't get that, nor the fact that a different (and higher profile) blog published a main article equating people in climate science to terrorists and mass murders, yet it (the anonymous) has no objection to that.  Nor, to be pragmatic, why it sent me the tweet rather than the owner of the blog.  I may wield awesome power, but that's mostly in my own mind -- not in every organization that I happen to be a member of.

In the midst of those, there was an idiot congressman (Grijalva, D-AZ) deciding to launch a fishing expedition on people, whose testimony he didn't like, got their funding from.  I'm all in favor of disclosure of all funding by people who testify to congress.  But not such selective application of the principle.As it stands, only government funding need be disclosed.  That strikes me as a problem  If you're happy with oil company funding not being disclosed, though, how happy are you that Greenpeace/Earth First!/... funding also doesn't need to be disclosed?  And vice versa if you're not fine with business disclosure.  For the same reasons, I also opposed the fishing expeditions of Joe Barton (R-TX) against Mann, Bradley, and Hughes (2005). 

I suppose there's a certain theatrical interest in what will follow now.  Republicans have officially decried (James Inhofe, R-OK, chair, Senate Environment and Public Works Committee) such fishing expeditions.  But Republican Lamar Smith (R-TX), chair of the House Science, Space, and Technology Committee, is pursuing his own fishing expedition against the National Science Foundation for funding proposals on, for instance, internet security and fraud detection.  Myself, I'm in favor of internet security and fraud detection. 

And then there's been the recent fishing expedition announced by Dana Rohrabacher (R-CA) against NASA for its temperature record analysis.  The analysis that agrees extremely well with results from NOAA, the Japanese Meteorological Agency, the Berkeley effort at re-analyzing all data from ground zero and re-inventing all wheels, .... 

Oh well.  Then there were the llamas, and much to-do about someone's dress?  A weird week.

Next post will be about a couple more substantive, and constructive, aspects to the week.