There are those who, for selfish, near-term interests, work hard to obscure the truth and only pretend to be part of the solution. When it comes to products and information, buyer beware.

First, the bad news: LG has been caught cheating by rigging it’s refrigerators to pass an energy efficiency test. It’s not the first time for LG (see Watts In Your Kitchen? ). Seems some people in the company not only cheat, but cheat poorly. On the bright side, the CEO of PG&E and a well-respected environmental scientist have collaborated on a very readable white paper on the science of global climate change and a response that will have a minimum negative effect on the U.S. economy in the short term, and very positive effects for the long term.

As reported in The Sydney Morning Harold, LG was caught with an illegal device in its model L197NFS and P197WFS refrigerators. The illegal device kicks the refrigerators into low power mode when it detects the temperature at which the refrigerators are tested in the lab (typically 22°C). So it shows Energy Star-level efficiency in the test, but costs more than $250 (Australian) to operate over a 10 year period than it would if it was energy efficient in the home. LG advertises that the fridges uses 738 kWh per year, when they actually use 876 kWh. There is another problem. The refrigerators can shut off when opened—putting your food at risk of spoiling.

Peter A. Darbee is the Chairman of the Board, CEO, and President of PG&E Corporation. His coauthor of the paper, Climate Change for Policymakers and Business Leaders, is Christopher B. Field, Director, Department of Global Ecology at the Carnegie Institution for Science in Washington D.C. For Darbee, global climate change is a business challenge; for Field, it’s pure science. Among other things, this is what they agree on.

• Global climate change will increase the severity of extreme weather events (including snow storms on the east coast); severely disrupt agricultural growing seasons and therefore create food shortages; increase scarcity of water for drinking, irrigation, and energy production; and make populated coastal areas vulnerable because of rising sea levels.

• Combating climate change through carbon cap and trade mechanisms, improved energy efficiency, and increased renewable energy will, according to the independent Congressional Budget Office, minimally impact U.S. economic output through 2050, while the positive economic effects of investment in energy efficiency and renewable energy, and a cleaner, healthier and more stable planetary climate will dwarf these negative effects.

I believe that, given the right information, more than 50% of us will see an environmental problem clearly and do what we can to fix it. But getting to 50% requires leadership—the kind that Darbee, a businessman, and Field, a scientist, are trying to provide through their white paper. Then there are those who, for selfish, near-term interests, work hard to obscure the truth and only pretend to be part of the solution. When it comes to products and information, buyer beware.

Words matter to scientists. The scientific method is a structure through which scientists test theories through experiment, and then share the results with other scientists.

Do words matter? They matter to the world’s great religions. In the Book of Exodus in the Bible—sacred text for Jews, Muslim’s, and Christians—God speaks, and there is light. The Gospel of John begins with, In the beginning was the Word. The Buddhist Sutras lead followers to enlightenment. The epic poem Mahabharata is a central narrative for Hindus.

And words matter to scientists. The scientific method is a structure through which scientists test theories through experiment, and then share the results with other scientists. Science moves forward inch by inch with every paper printed in a journal or delivered at a conference.

Without words, we wouldn’t be human. Our great democracy is based on the    power of words—the Declaration of Independence, the Bill of Rights, the Constitution. We are inspired by words—the Gettysburg Address, Shakespeare. Lucille Clifton,  a poet that I got to know and love through the Squaw Valley Community of Writers, and who died recently at the age of 74, wrote short, simple, powerful poems that turned conventional interpretations of the Bible upside down. (In one poem she quotes from the Book of Samuel, David has slain his ten thousands—he was a mercenary before he was a king.)

A recent Supreme Court decision that gave corporations the same free speech rights as individuals has me worried. It equates money with words. Is one person’s ability to persuade another, or a nation, equal to a corporation’s ability to flood the media with sound bites that tend to distort the truth as much as enlighten us? (“Heresy” means emphasizing one aspect of the truth to the exclusion of all others; it doesn’t mean an out-and-out lie as many people think. Just as pornography is emphasizing one aspect of our humanity to the exclusion of others. Pornography sells.)

If you read all the Gospels you get a sense of what Jesus was about. He rarely mentioned sex, never talked about birth control; but he talked a lot about the danger of money and power. Jesus was harder on the religious leaders of his time than he was on tax collectors and prostitutes. (To the Pharisees he says You clean the outside of cup and plate [obey the letter of the law and what people can see] but inside you are all corruption.) He knew that wealth and the power it conveys corrupts. He stood for the power of persuasion and not force. He led by example and spoke of the power of love and forgiveness. Jesus became angry when he saw powerful people abusing the weak and vulnerable.

Those of us who believe in the power of words—scientists included—have our work cut out for us. There’s a lot of money being spent to distort the truth. For example, “death panels”—the claim that the Obama health proposal advocates the government to pull the plug on Grandma—and the claim by some of late that the snow storms on the East Coast are proof against global climate change. But we have the power of words on our side. We’ll need it. A headline in Thursday’s New York Times online reads, “Darwin Foes Add Warming to Targets.”

Carl Sagan’s scientific career took a bruising because of his outreach work.

I am convinced that a lot of people’s misconceptions about science could be cleared up with a little outreach from scientists. I’m talking about outreach activities like creating websites that give good, reliable, understandable information, talking to school and adult groups, getting involved in museums, PBS, the Discovery Channel, etc.

Getting scientists to do any of this is the tricky part. They have no immediate incentives to do it and in fact, there are disincentives. But they need to learn that it is in their best interests.

Taxpayers pay most scientists’ salaries through federal grants. An uninformed, suspicious, or actively hostile public obviously will not want to pay for scientific research. So anything that can be done to inform the public about the good work being done will probably loosen the purse strings in Washington at least a bit.

Of course the problem with this argument is that it uses an abstract fear of something in the distant future. Sort of like global warming.

As we’ve learned from that, most people aren’t willing to sacrifice much for far off, future dangers. If gas is cheap, we’ll keep driving big cars. And we certainly won’t sacrifice any current goods for a future that may or may not come to pass.

Same thing with scientists. Outreach is a thankless task that can actually work against the people who do it. Scientists who do a lot of outreach are often perceived as not being serious about true science and they’re dinged for it.

There is also no incentive at Universities to do outreach. As anyone who has been involved in academic science knows, the key to success is to get government grants that help fund the scientist’s research, his or her department and the University. Everything else an academic scientist does takes a backseat to this. And outreach isn’t even in the car.

Outreach takes scientists away from the lab. It is in the lab where results are generated that can be published to get grants to fund more research. Less time on research equals less money.

So to get scientists doing outreach, we need to change the incentives. There either has to be a change at Universities so that outreach is valued. And by valued I mean tenure track positions or long term funding for people to do outreach. Frankly this is pretty unlikely.

The other possibility is to include outreach as part of a scientist’s grant. In other words, to get money for their research, scientists will need to do some outreach.

I am aware of two major funding agencies—the National Science Foundation (NSF) and the National Human Genome Research Institute (NHGRI)*—that mandate outreach for at least some of their grants. These mandates are a critical first step in getting more digestible science out to the public. But to make a major dent, we need the NIH to get involved too. They fund a whole lot more research and so a whole lot more outreach would get done too.

The NSF and NHGRI requirements are definitely causing a lot of scientists to scramble around and try to find outreach projects to fund. (Email me if you have some spare money lying around!) But I don’t know the quality of the outreach that is being done.

Hopefully the people doing outreach are better than the average scientist at talking or writing about science with the public. For the most part, the money would probably best be spent on hiring someone with a scientific background who is good at explaining science. Or in training scientists first in how to effectively communicate science to the public.

All of this points to another major issue—we need to figure out what we want from these outreach opportunities. Is it to provide a good source of information for the public? To enhance understanding of how science works? To teach people how to tell good science from bad? To train the next generation of scientists? To…? No one is really providing leadership on these questions. Let’s hope someone does soon.

*The NHGRI is interested in increasing the numbers of genomic scientists who are under-represented minorities. Definitely worthwhile but not really doing a lot for the public understanding of science.

Here is a great book on the subject: Unscientific America: How Scientific Illiteracy Threatens our Future.

Original photo by: astique

What seems missing from the debate, in my opinion, is science. I hear a lot of ideology coming out of Washington and being espoused at town hall meetings and by protesters on both sides of the issue. I don’t hear much from people who have studied various health care systems and have gathered good information about what systems work and why they work and how to practically adapt such systems in the United States.

I think that science is fundamentally about information and religion is fundamentally about relationship. The word religion comes from the Latin "to reconnect." Immanuel Kant wrote in The Critique of Pure Reason that human reason has gone from the position towards nature as that of a pupil before the teacher, to that of a judge before a witness. In other words, science has become more about information and less about a basic curiosity and respect and even love for nature. On the other hand, religion has become more and more self-centered. When Catholic Bishops care more about the reputation of the Church and less about the welfare of the poorest and most vulnerable in their communities, we have a problem. When popular preachers use their influence to push a particular political agenda, while enriching themselves in the process, we have a problem.

I don’t know how the debate about health care will turn out, but I do have an example of how it can work. I take medication for a chronic condition, and see a doctor two or three times a year to discuss my medication, make adjustments, and so on. With her help I have been able to live a pretty healthy and fulfilled life. She spent years in medical school working very hard to gather information about the human body, its deceases, and its cures. She has spent many years gaining experience in applying that information in particular cases. But when I see her there is more going on then the passing of information. I believe she cares how I am doing. I think, within the boundaries of her profession, that she loves me, as she does her other patients with whom she has been able to build a relationship over time. However the health care debate turns out, I hope it allows more people to have the kind of relationship I have with my doctor. And I hope that it encourages more doctors to be healers, and not just dispensers of information and pills.

Map of Moon water; blue indicates higher concentrations of detected water molecules. Credit: NASA/Moon Mineralogy Mapper instrument.

In one short week, NASA's LCROSS (Lunar Crater Observation and Sensing Satellite) mission will quite literally come to an end—a fiery, spectacular end as it deliberately crashes into the lunar South Pole crater Cabeus A in hopes of kicking up enough material for us to detect the presence of water. If you want to see the action as it happens, come up to Chabot Space & Science Center on Friday morning, October 9, 3:00 AM to watch NASA's live simulcast and–weather and the gods of astronomy permitting–the view through Chabot's 36-inch telescope, "Nellie."

In recent months, NASA has been sending a lot of acronyms—excuse me: spacecraft—to the Moon: LRO with it's LROC, LEND, and LOLA instruments; LCROSS (which I've heard some call "LaCROSS," for the record) with its VIS, NIR, MIR, TLP, VSP, NSP—oh, the list goes on!

The fact of the matter is MOON spells "Moon." Whether or not we do end up returning humans to the Moon in the next decade, which is partly what reconnaissance by LRO and LCROSS and their arrays of acro-instrumentation is for, there are still things to be learned about our nearest neighbor in space—and water is the word at present.

Even as LCROSS and its Centaur-booster-rocket-turned-lunar-clobbering-device follow their final fatal trajectory toward Cabeus A, its launch buddy LRO, now in an orbit around the Moon and beginning to send back scientific results and images, may have already detected telltale signs of the wet stuff—which on the Moon won't be wet, but frozen solid, of course; liquid water cannot persist in the Moon's airless environment.

LRO's LEND (Lunar Exploration Neutron Detector) instrument is designed to find signs of water molecules by measuring neutron radiation emanating from the lunar surface. The Moon is constantly bombarded by high energy cosmic radiation, which forms radioactive isotopes in the soil that in turn emit neutrons. By measuring the abundance and speed distribution of the neutrons, details of soil chemistry can be inferred. The presence of light atomic nuclei–in particular the lightest of all, hydrogen, a component of water—in the soil reduces the levels of neutron emission. That drop in neutron radiation is the telltale scientists are looking for.

While LRO scientists want to make further measurements before concluding the presence water ice concentrations, observations from three other spacecraft—NASA's M3 instrument (Moon Mineralogy Mapper) aboard India's Chandrayaan-1 spacecraft and the Cassini and EPOXI spacecraft—have mutually confirmed the presence of water and hydroxyl molecules (hydroxyl is a water molecule missing one of its two hydrogen atoms) in the soils of the Moon, across much wider expanses than the confines of dark polar crater floors.

Cassini and EPOXI made measurements as they flew past the Moon to their respective destinations (Saturn, and a comet), and measurements have been made by M3 from lunar orbit. The detection of water by these spacecraft doesn't mean seas of liquid or glaciers of ice, or even blanketing layers of gaseous water vapor, but rather relatively small amounts of water and hydroxyl molecules attached to, or "stuck to," other materials in the top few millimeters of soil.

This thin "confetti" of water molecules appears to come and go with lunar daytime, forming during the cold, dark two-week-long lunar night and diminishing under the baking light of the Sun.

So, right now, MOON spells water (M3 et al), water (LRO), and possibly more water (LCROSS, on October 9th)—at least, the evidence seems to be mounting!

Every fall, 30,000 raptors and hawks migrate across the Bay Area in a fantastic display.

In celebration of the 25^th anniversary, there are a number of interactive events and talks scheduled over the next month.

Hawk Talk and Banding Demo

Where: Hawk Hill

When: Sat 9/12, Sun 9/13, Sat 9/19, Sun 9/20, Sat 9/26 12 Noon – 2 PM

Cost: Free

Details: At these Hawk Talks, a GGRO volunteer gives an hour-long talk about hawk monitoring, migration, and identification using photos and other props. Then at 1 PM a newly banded wild hawk is shown to the crowd, a volunteer talks about GGRO's banding program, and the hawk is released.

GGRO Open House and Raptor Fest!

Where: Ft Cronkhite at Rodeo Beach

When: October 24^th and 25^th, 10 AM-4 PM

Cost: Free

Details: Scientific Displays, Radiotelemetry Demonstrations, Live Non-releasable Raptors, Kid Crafts, GGRO 25th Anniversary Product Sales, Visits to Hawk Hill, Banding Demonstrations, and Raptor Art. On Sunday only – Speakers from UC Davis, SF State University, UC Berkeley presenting results of their research with GGRO.

Celebrate Raptors—A Series of Raptor Biology Talks

Satellite-Tracking Peregrines throughout the Americas

Where: San Francisco Zoo

When: Thursday, September 10^th 7-9 PM

Cost: $3-$5 suggested donation

Falconiformes Discovery: Field, Lab, and Conservation

Where: California Academy of Science’s Nightlife

When: Thursday, October 15^th 7-9 PM

Cost: $12

Eagle Quest:  To See All the World’s Eagles

Where: Mission Blue Chapel, Cavallo Point

When: Wednesday, November 18^h 7-9 PM

Cost: $3-$5 suggested donation

Water and cornstarch make a non-Newtonian fluid when mixed: messy but great fun!

Fast-forward fifteen years to the beginning of the present school year and the Internet has given us all a huge leg-up in finding hands-on ways to learn science. These are demonstrations rather than experiments–an important difference for those entering a fair. Nevertheless, I have included two of my favorites below.

Homemade Oobleck:

Pay tribute to Dr. Seuss's book Bartholomew and the Oobleck by whipping up this mixture that is both solid and liquid at the same time! The simplest version is listed below, but adding a few more bells and whistles can increase the demonstration's awe-factor a bunch.

What to do: You need a mixing bowl, water, and cornstarch. Fill the mixing bowl with about 1 cup of cornstarch, and add roughly an equal volume of water. Mix, incrementally adding cornstarch or water until the mixture attains an appropriate blend of goopiness and firmness. Enjoy the fluid's bizarre properties by squishing and kneading it with your hands.

What's going on? Nearly all fluids have some intrinsic flow resistance. This property, called viscosity, is the reason water flows more easily than honey and at least partly why Usain Bolt can run 100 meters in under 10 seconds while it takes Michael Phelps well over a minute to swim the same distance. Our water/cornstarch mixture has a very special viscosity, making it easy to dip your hand into the mixture slowly, but quite hard to push it in quickly. (Technically, this is an example of a non-Newtonian fluid.) Science class will teach you that almost all matter can be classified into either a solid, liquid, or gas, but this is at least one example where the distinctions blur.

Bernoulli's Hair Dryer:

In 1738 the mathematician Daniel Bernoulli (pronounced Ber-NEW-lee) published a theory of fluids that has influenced the designs of airplane wings and sailboats ever since. Exploit this concept to suspend a balloon or ping-pong ball precariously in mid-air with a hair dryer.

What to do: You need a hair dryer and a small round balloon (or a ping-pong ball, depending on the hair dryer's strength). Turn the hair dryer on, point it upward, and place the balloon in the vertical column of air. If the ceiling is not too high, you should be able to balance the balloon in mid-air this way. Now begin to tilt the hair dryer and watch the balloon stay suspended almost magically.

What's going on? Everyday experience helps us understand why the balloon or ball stays suspended when the hair dryer is pointed vertically: air blowing upward pushes on the balloon, and this in turn counteracts gravity. But why doesn't the balloon fall off to the side when we begin to tilt the hair dryer? The answer lies in Bernoulli's principle, which states that, all other things being equal, a fluid loses pressure as it picks up speed. The air coming out of the hair dryer is moving faster than the room's air so its pressure is lower. This pressure difference helps keep the balloon suspended, even when you tilt the hair dryer.

Water and cornstarch make a non-Newtonian fluid when mixed: messy but great fun!

Cal Academy and The 11th Hour Project are bringing some excellent speakers to town.

Maybe this is a reflection on my choice in friends, but the above quote is a common comment about the Academy's wildly successful adults only Nightlife program (just check Yelp). Yet if you go a touch deeper than the rockin' DJ, numerous bars, and diverse exhibits, there is a wealth of interactive programs to exercise your brain. This month may bring the most celebrated speakers yet, all thanks to the folks at the 11^th Hour Project, a non-profit dedicated to creating a sustainable world.

Opening the month are Dan Kammen & Sally Benson discussing the emerging green energy economy, focusing on the novel technological solutions to the global energy issues. In case you were worried about their credentials, Dan is the lead author for the UN IPCC panel (they netted a Nobel Prize in 2007) and Sally is one of the pre-eminent U.S. experts on carbon sequestration.

On 9/10, Annie Leonard takes the stage to discuss her popular polemic, The Story of Stuff. Annie's tale is 20 minute tale of our unsustainable production and consumption pattern. The viral video is now well past 7 million views, all from a filmmaker who was curious what happens to all our "stuff".

Maya Lin, the Chinese-American artist who designed the Vietnam Veterans Memorial, unveils her new sculpture titled "What is Missing?" in the East Garden on 9/17. She'll discuss the new piece, which is dedicated to raising awareness of biodiversity and habitat loss, as well as her artistic process.

Finally, 9/24 is the night for the disappearing glaciers. Orvile Schell, the director of the Center on US-China Relations, has been documenting the decline through photography. Beyond his stunning photos, Orville will discuss his work to create a cooperative strategy between the US and China (the top 2 greenhouse gas emitters) to reduce their carbon emissions. Filmmaker and mountaineer David Breashears will also discuss the glacier disappearance through his 1^st hand accounts of traveling to receding sites on the highest peaks of the world. He knows a thing or two about high peaks; David was the first American to summit Mt. Everest twice.

California Academy of Science's Nightlife

Where: California Academy of Sciences

When: Every Thursday in September, 6-10 PM

Cost: Tickets are $12 ($10 for Academy members).  Many of the programs below require passes. Please check the Nightlife page for more information.

Thursday, September 3^rd 2009

Professors Dan Kammen, coordinating lead author for the IPCC, and Sally Benson, Director of the Global Climate and Energy Project, debate the Green Energy Economy.

Thursday, September 10^th, 2009

Author & Filmmaker Annie Leonard recounts a Story of Stuff.

Thursday, September 17^th, 2009

Celebrated artist Maya Lin (she designed the Vietnam Veterans Memorial in D.C.) unveils her new sculpture in the East Garden. In addition, Chef Laura Stec & Climatologist Eugene Cordero cook up a low carbon diet.

Thursday, September 24^th, 2009

Orville Schell, current Director of the Center on US-China Relations, unveils his photographs of retreating glaciers as we chart a path to the UN Climate Change Conference in Copenhagen. In addition, American Mountaineer David Breashears, director of the IMAX film Everest, shares his adventures on the edge of the disappearing glaciers.

The Crab Nebula as seen through Chabot Space & Science Center’s 8-inch refracting telescope, Leah. Image: Conrad Jung, Chabot Space & Science Center

What's the Crab Nebula? Astronomy enthusiasts are very familiar with this celestial object, or at least become so very quickly after entering the world of space. It's a supernova remnant—a torn and tortured cloud of gases expanding outward into space, the aftermath of a supernova explosion that happened almost a thousand years ago in the constellation Taurus. In fact, as I write this blog, the age of the Crab Nebula is exactly 955 years and 40 days.

How do we know with such precision when this former star went supernova? The answer, as always in science, is careful observation! The explosion of the star was witnessed by Chinese and Japanese astronomers—and possibly sky watchers of the American Southwest—who carefully observed and recorded the event. The explosion took place on July 4th, 1054 CE.

Seven hundred years later, a century after the invention of the telescope, the Crab Nebula was discovered in the same spot—first in 1731 by John Bevis, then again by Charles Messier in 1758 (August 28, in fact—the date of this blog posting!). Messier ran across it while searching for Halley's Comet, and at first mistook it for a comet. This was the reason that he began compiling his famous Messier catalog of "fuzzy" objects: a wall of mug shots of unusual suspects that resembled, but were imposters of, comets. He began his catalog with Messier 1 (M1), the Crab Nebula.

Messier 1 got its nickname of the Crab from a drawing made by observer Lord Rosse in 1844.
Today, the Crab Nebula is an expanding cloud of gas and some dust spanning 10 light years, or 60 trillion miles. The cloud is still expanding at a speed of about 1,800 kilometers per second—a speed that would get you to the Moon in just under 4 minutes! At its center is the collapsed remnant of the dead star's core, which has become the incredibly small and dense object known as a neutron star.

So why did the Crab Nebula spark my interest in astronomy? I have a specific memory of being at a summer camp and engaging in a craft activity where we cut out the pictures from a bunch of astronomy calendars and made frames and matting to display them in. I selected a few of my favorite images, which included the Dumbbell Nebula (a planetary nebula), the Veil Nebula (another supernova remnant), and, of course, the Crab. Of all these stunning astrophotos, it was the Crab that stuck the longest in my mind and on my bedroom wall, and impelled me to get my first subscription to Astronomy Magazine, and eventually my first telescope. Sometimes, our lives are guided by stars….

Amazing what foods you can find in your own– and your neighbor's– backyard. Photo credit: Iso Rabins of ForageSF

Considering that I work from home, don't fly very often, and walk or take mass transit most places, I bet Michael Pollan is especially right for me. Last June, QUEST had a radio piece on a low carbon diet with tips to lower your CO2 impact, but my inner scientist needs some data. That's when I found the Carbon Foodprint Calculator.

Here's what I ate yesterday:

• Cereal with Milk
• Small Salad
• Chicken Sandwich
• 3 Diet Cokes
• Beer
• Apple, Banana, and some strawberries

My wife usually nags me about my diet, but I think I did pretty well yesterday! (excepting those diet cokes) My carbon foodprint was 2641 CO₂e points. Each point represents 1 gram of CO₂e equivalent or in my case 5.8 lbs of CO₂e. Now this is calculator certainly has limitations (mentioned in their FAQ section), but it is a satisfying comparison study. The site claims that most Americans have room to cut their carbon foodprint 25%. Not easily done, but luckily we have help in the Bay Area.

This weekend, Iso Rabins, founder of ForageSF, is taking an intrepid crew out to learn about foraged foods (virtually zero in carbon foodprint if foraged locally). He'll teach you how to identify wild edibles all around you, from wild fennel to mallow to nettle. Many of the plants we see everyday can be consumed on the spot (although better after a quick rinse). After taking a collecting walk, he'll cook up some snacks that includes some of what was foraged.

On Monday, Chef Laura Stec and climatologist Eugene Cordero cook up some Cool Cuisine, with a discussion of their new cookbook focusing on low carbon recipes. Cordero presents research on the energy efficiency of our food system and the relationship to our changing climate and then Chef Laura provides some practical cooking tips for low carbon foods without sacrificing flavor. For those who can't make the event, you can watch their presentation last month at the PARC Forum.

Guided Foraging Tour with ForageSF & TransportedSF

When: Sunday, August 9^th 12 PM – 7 PM

Where: Meet at Papa Toby's Revolution Café, 3248 22nd St, SF

Cost: $35, Tickets

Environmental Action through Eating: Best Bang for the Buck

When: Monday, August 10^th 6 PM – 730 PM

Where: Commonwealth Club, 595 Market St, 2^nd Floor, SF

Cost: $8 members, $15 non-members, Tickets