Articles

Hearing Neil deGrasse Tyson — Science in today’s world

Neil deGrasse Tyson - Sioux Falls, SD

Neil deGrasse Tyson, speaking at the Boe Forum at Augustana University in Sioux Falls. All science related of course, getting sidetracked on some amusing other issues at times, but a great speech. My biggest takeaway…the need to restore humanity’s sense of wonder about the universe (and our own world).

We had the GREAT pleasure last night to hear Neil deGrasse Tyson speak at the “Boe Forum” at Augustana University in Sioux Falls.The Boe Forum on Public Affairs was founded in 1995, with a goal “to provide access to individuals who can address events, issues or problems of worldwide or national concern and of broad public interest.”  They’ve certainly had some wonderful speakers (and some less wonderful speakers…think Newt Gingrich and Rudy Guiliani) over the years. They’ve managed to draw some very big names, including Colin Powell, Mikhail Gorbachev, George H.W. Bush, Al Gore, Desmond Tutu, Vicente Fox, Sandra Day O’Connor, Pervez Musharraf, and Madeline Albright. Augustana University has just opened their new “Froiland Science Complex”, and said they wanted a “moonshot” science speaker to coincide with opening of that science center.  They certainly succeeded by managing to draw Neil deGrasse Tyson to Sioux Falls.

Tyson ended up talking for two hours, and while my son was getting a wee bit antsy towards the end, I must say that it was a very engaging, surprisingly funny, and interesting talk that kept me very engaged the entire time. There were a few things that surprised me a bit, things I disagreed with.  Given today’s political climate and how it’s affecting science, I was hoping for more content on the intersection of the two, but overall it was a terrific talk.  Some of the takeaways for me:

1968 – 1972 – Birth of the Environmental Movement — The highlight of the talk to me was a section where he specifically talked about the period of 1968 to 1972 and the profound effect it had on humanity and our country.  Apollo 8 was the first mission to orbit the moon, in 1968. As they rounded the moon, astronaut William Anders took the iconic “EarthRise” photo (bottom of this post), looking across the moon’s surface back at Earth.  The next year we landed on the moon. As Tyson noted, these events totally changed humanity and how we view our own planet.  Some very simple observations noted how little we understood our earth up to that point.  He showed a photo from Star Trek, of the Enterprise orbiting the Earth. Their depiction of Earth had the continents, the oceans…but no clouds!  Tyson gave other examples of artwork and even scientific renderings of Earth up to that point, and none of them portrayed the clouds that are always present! The sense of wonder during the space race, the first looks at our planet from space…it changed how we viewed our planet.  In the period from 1968 to 1972, you thus ended up with the establishment of the first Earth Day. The Environmental Protection Agency was founded.  The National Oceanic and Atmospheric Administration was founded.  We started cleaning up our air, our water.  We noticed the massive decline in our national symbol, the Bald Eagle, and banned DDT to save the species (a resounding success!).  The Endangered Species Act was founded in 1973.  This period STARTED the environmental movement.

Reinvigorating interest in science — The take-home point from the examination of the 1968-1972 period?  All that sense of wonder…that feeling that our Earth is a special place…that’s GONE, or at least incredibly diminished right now. Many people today simply can’t see past their own short-term guilty pleasures to even THINK about the future.  At the end of Tyson’s talk, he had a question-and-answer period. One of the questions was related to these points, and how we can get back to those days of the 1960s and 1970s where environmental conservation, where caring about our planet, really was part of the American consciousness. The answer from Tyson wasn’t related to politics, it wasn’t related to things like the March for Science coming up on April 22nd, it wasn’t related to need for better PR.  No, the answer was much more basic, and was rooted in k-12 education. We just don’t value science as much as we should in those formative years. As Tyson stated, what’s going to end up giving us a kick in the butt isn’t just a change in k-12 education, but a realization that we’re losing our economic competitiveness.  With education driven not by national-scale policy but local and state policy, the States that embrace science and technological innovation, starting in k-12, are the ones that will be competitive for industries that drive our economy. Given how much of a focus their is in this country right now on economics, money, and growth, the cynical side of me believes that it will be economic competitiveness that will end up re-igniting the interest and science and innovation, rather than any pure desire to invest in science for science’s sake.

Star Trek depiction of Earth

Prior to the famed “EarthRise” photo from 1968 and our landing on the moon a year later, humanity had little awareness of how to even portray our Earth. As Tyson noted, up until the late 1960s and the space race, this was a typical depiction of Earth (from the original Star Trek) series. Continents…check! Water…check!! Atmosphere, clouds, and weather…something’s missing! The space race had a profound impact on the way humanity viewed our own planet

Intersection of Science, Culture, and Politics — Speaking of the March on Science on April 22nd, one of the questions he received was about scientists and their role in activities such as this. Overall for the night, he really avoided politics, although there were a few timely, light jabs thrown in.  When the audience member asked this question, I thought we might finally hear his thoughts on the impact of politics on science right now. He did touch on that intersection, but it was different than I was expecting. He’s an educator, some may view him as an entertainer, but at his heart, he’s a scientist through-and-through.  His answer began by saying he was on the fence, that in his own mind, he’s still trying to decide how scientists should react in this kind of political environment.  But for the March itself, he said what he really hoped was that such an event wouldn’t be necessary.  As he hammered home all night long, science isn’t political.  Science provides its own truths, as as he stated, it doesn’t really give a damn what you think about it, what your personal, cultural, or political beliefs are.  In short, you can tell that what he’d like to have happen is that the science would speak for itself, that the knowledge and understanding we produce would stand on its own, and that humanity would return to a time where we’d base our decisions on that knowledge.  You can tell he’s struggling a bit with the issue, and is likely as bewildered as many of the rest of us as to how truth, how fact, are being ignored in the face of cultural, political, and ideological attacks. He definitely didn’t seem to have a clear answer on how scientists respond.

Human ego and science — Tyson ended his talk with a theme similar to his discussion of the 1968-1972 period, and its effect on humanity.  He talked about the “Pale Blue Dot” images, the first from Voyager One in 1990, where the instrument looked backed towards Earth and took an image representing our planet as tiny, pale blue dot in a sea of stars and emptiness.  The Cassini satellite studying Saturn provided a similar view more recently, with a 2013 image that shows Earth as a tiny blue dot hiding in the shadows below the foreground image of Saturn and its rings. The end of the talk itself was a reading of material from Carl Sagan, from his 1994 book “Pale Blue Dot”.  The following summarizes that material (a bit revised, from a talk Sagan gave that year):

We succeeded in taking that picture, and, if you look at it, you see a dot. That’s here. That’s home. That’s us. On it, everyone you ever heard of, every human being who ever lived, lived out their lives. The aggregate of all our joys and sufferings, thousands of confident religions, ideologies and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilizations, every king and peasant, every young couple in love, every hopeful child, every mother and father, every inventor and explorer, every teacher of morals, every corrupt politician, every superstar, every supreme leader, every saint and sinner in the history of our species, lived there – on a mote of dust, suspended in a sunbeam.

 

The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of the dot on scarcely distinguishable inhabitants of some other corner of the dot. How frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe, are challenged by this point of pale light.

 

To my mind, there is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we’ve ever known.

"Pale Blue Dot", Cassini

‘Version 2″ of the Pale Blue Dot photo, if you will. This is from the Cassini spacecraft orbiting Saturn, looking back at Earth (the small dot in the bottom right).

Religion and Science — Tyson touched on topics related to the Sagan reference all night long. In the overall scheme of the universe, we’re insignificant. We’re not “special”.  At one point he listed the 5 most common elements in the Universe.  He then listed the most common elements in a human body. The list is identical, with the exception of helium (given it’s pretty much non-reactive, it doesn’t form elements found in the human body).  The point he makes…we’re just “stardust”, made up of the same common elements found throughout the universe.  On a night when he would occasionally brush up against the edge of talking in depth about the intersection of culture, politics, and science, but never really dive into the deep end of that pool, this may have been the most “controversial” part of the talk (particularly given that the talk was at a University associated with the Evangelical Lutheran Church, and was speaking in very “red” South Dakota). When touching on politics or culture, you can tell he tries very hard to avoid offending anyone, and he barely mentioned religion.  But as I listened to this part of the discussion, I did wonder what some of the more religious people in the room were thinking.  We’re not “special“.  We’re almost certainly not alone in the Universe, given that we’re made up of the same material as is found throughout the rest of the Universe. We live in a country, however, where a huge swath of the population is unable to separate the science, even the empirical world staring them in the face, from their religion.  In the end its a personal ideology that ends up driving the behavior and interactions of so many Americans, science (and reality!) be damned.  Overall for the night, in what would be interpreted to be a tough cultural and political setting for a science purist like Tyson, he did a great job walking the fine line of informing, without offending.

If you ever get a chance to see Tyson speak, it’s well worth your time.  He’s a wonderful speaker, with a rare ability for a scientist…he knows how to connect with people.

Apollo 8, William Anders' "Earthrise"

The iconic “Earthrise” photo, taken by Apollo 8 astronaut William Anders on Christmas Eve, 1968.

How much carbon dioxide in the atmosphere? Ssshhhhh….it’s classified

Atmospheric Carbon Dioxide

Trends in atmospheric carbon dioxide from pre-industrialization until today. We’ve gone from a baseline of 280 ppm to 404 ppm today, a level of atmospheric CO2 not seen in over 600,000 years. It’s irrefutable evidence of the impact man has had on the atmosphere and our climate. And now…evidently under the Trump administration, the level of atmospheric CO2 is classified information.

Science is in the news again!  Front page of the Washington Post, New York Times, and other major media outlets!! No, we haven’t discovered extraterrestrial life.  No, we haven’t found a cure for cancer.  In fact, there haven’t really been any earth-shaking research results published  No, the science-related stories that are capturing the front pages of major newspapers are those related to the muzzling of scientists in the federal government under the Trump Administration, after only 5 days.

It started on the 2nd day of the Trump administration.  Information on climate change was deleted from all White House website pages on Saturday, along with other issues that evidently aren’t important any more, such as civil rights.  Who needs to worry about civil rights, when we’re headed back to how it “should” be, with hairy old white men in charge of everything?  It’s all good!  In place of the climate change and LGBT information?  Melania Trump’s jewelry line. Yes, that’s right, a sales pitch for Melania’s jewelry literally is more important to the new administration than climate change or civil rights, and occupies space on the White House website.

Science and environmental research and reporting in the federal government was immediately under attack on other fronts as well.  This week Trump issued an executive order freezing all research grants and contracts at the EPA. All contract and grant awards, as well as all “task orders and work assignments”, are to be “temporarily suspended, effective immediately”.  It’s clearly the first step in dismantling regulatory activity at the EPA, with the Trump administration believing that regulation hinders business activity.  “Regulation”…you know…making sure you and your family don’t DIE or get sick just by breathing, drinking, and eating.  Minor little things like that get in the way of rich people making even more money, and we simply can’t have that.

Other federal agencies were instructed to halt “external communication”.  The Department of Health and Human Services has been instructed not to communicate “with any public officials”.  EPA was told to halt all press releases, blogs, or social media posts.  The U.S. Department of Agriculture was told to stop releasing any “public-facing documents”.  In other words, federal agencies have been instructed by the Trump administration to stop communicating with the public, to stop releasing results of the work that is done with taxpayer dollars.

Social media posts and press releases are a primary means by which federal agencies communicate with the public, and some bold renegade Feds today pushed the envelope on what’s now “allowed” in the Trump administration.  I say “push the envelope”, when in fact, all they did was do what they’ve done since social media became popular…they DARED to report scientific fact, without any inherent political message.  Badlands National Park in South Dakota sent out a series of tweets earlier today, simply providing the facts on what’s happening with our atmosphere and climate change.  Here’s a sampling of their tweets from the day:

National Park Service - Badlands Tweets

Pretty innocuous stuff, and pretty much the same kind of science information that’s tossed out on social media by many federal science agencies.  The response to DARING to state how much carbon dioxide is in the atmosphere? After a few hours, all climate-related tweets on the Badlands site were deleted, without explanation. Was there some violation of federal policy with the release of this mundane, extremely well-known, and well-verified data? As this story from Salon.com notes,the following rule of thumb generally applies to the disclosure of information by federal employees:

A public employee is allowed to speak publicly or share information with the media, if that information is not considered a government secret or classified information.

Evidently stating how much carbon dioxide is in the atmosphere is now a “government secret” or “classified information”.

The public clearly has a right to know how their tax dollars are being spent.  There were several reported cases of the Bush administration editing climate-related research results, changing phrasing or eliminating certain results to downplay the expected impact of climate change. While the Bush administration was openly criticized for their attempts to downplay climate-change impacts, those interventions were in fact relatively infrequent.  Science research in the federal government, including climate-change research, has generally been considered public domain information, and attempts to muzzle or modify research results have been few and far between.

The actions of the Trump administration in just the first 5 days are a warning shot across the bow for scientists in general, a warning that science is now subject to the same vagaries of politics as is the rest of the federal government.

Killer Grizzlies, Ice Twisters, and more – Science, Nature, and other news

Killer Grizzlies, “Ice Twisters”, and more…Science, nature, and other news of the week. Click on each headline for the story itself.

Grizzly Bear - Ursus arctos

Taken this morning, A Grizzly Bear, lurking JUST outside the Brandon Valley Middle School attended by my son. STAY BRAVE, MY SON!! We finally have a leader…nay…a HERO…who will stand up for you and your fellow children.  No longer will you cower in fear each day at school, wondering if…wondering WHEN...the next child will be taken by a Grizzly Bear. Prepare for firearm training, my son! Soon you will be able to defend yourself!

Grizzly Bear Scourge Killing Thousands of American Children — With all the testimony this week of potential Trump Cabinet members, the most insightful, meaningful words of wisdom came from Betsy Devos, the woman who (shockingly) is about to lead the Department of Education.  When asked about her stance on guns in schools, Devos first deflected, stating that it should be a local choice.  When pushed, Devos spoke of the one issue that wasn’t discussed NEARLY enough during the fall campaign…the deadly scourge of Grizzly Bear attacks on our children at school.  Yes, that’s right folks, FINALLY we have a Trump Cabinet member who “gets it”, who understands the daily struggles of everyday Americans. Who hasn’t worried about Grizzly Bear attacks when dropping off their child at school in the morning? Betsy, we love you.  You’ve proven you are one of US, everyday Americans struggling with everyday, life-or-death problems.  Hopefully under your watch, teachers, or…better yet…children THEMSELVES will be allowed to carry semi-automatic weapons to combat the Grizzly Bear scourge.  God bless you, Betsy Devos!

Cat toll on wildlife tallied – We had a neighbor with a cat that started showing up on their front step.  They adopted it, although for the much of the time, they kept it as an outdoor cat. Every night it would be out on its own, and often during the day as well.  It was a sweet cat! It was also an evil, bird-killing machine that was seemingly always in our yard. There would be many, many times I’d look out our sun room at the bird feeders, only to see the cat crouched and hiding by a nearby bush. Over the years, the visits to our yard became less frequent, either because 1) it was scared to death of me chasing it out of the yard again, or 2) it progressively got fatter and less agile.  He took a toll on birds in my yard.  I often witnessed him killing a bird, and other times, I’d just find the aftermath, with a pile of feathers or a dead mangled body. One cat, one yard, and likely many dozens upon dozens of kills.  So what is the toll of cats on wildlife?  As this story notes, a wildlife rehab group in Virginia tallied cat-related animal injuries over the years, and found they treated over 80 species that had been attacked by cats, including over 60 different bird species.  This past summer, the neighbor cat disappeared one day, as it didn’t return home after (yet another) night left outside on its own.  I love what pets bring into a home, but admit I was NOT fond of the way the neighbor cat was treated, and what it was allowed to do. Leaving it outside all the time ended up costing it its life, but it also ended up costing the lives of countless small critters over the years.

Tornado - 1884

What’s thought to be the world’s oldest photo of a tornado, taken in 1884. This photo always terrified me, ever since I saw it as a kid. It just looks…evil. And hey, GREAT! THANKS SCIENCE! In addition to every other way a tornado can kill you, now we also know that the inside of a funnel is quite cold! “Ice Twisters”, the SyFy movie, may have actually been a documentary!

Ice Twisters!! — Several weeks ago, my son and I were flipping through the channels, and as we passed the SyFy channel, we saw a movie called “Ice Twisters!” was on.  Typical SyFy movie…government research gone wrong, with drone-related atmospheric research somehow resulting in deadly “Ice Twisters” that were ravaging the landscape. In the movie, the cause of death for those impacted by an Ice Twister wasn’t necessarily wind…no…they froze to death!  Yes, twisters that were THAT cold!  Well, it turns out there’s a hint (the slightest hint) of truth in the show.  The story goes back to 1955, when three employees from a radio station in Nebraska were taking cover from a tornado in the basement of an old stone house. The vortex passed directly overhead, and as it did so, the structure above was blown away.  The three people in the basement noted the difficulty in breathing as the tornado passed overhead, but also felt the temperature dropping very sharply.  Researchers studying the case found that the temperature likely dropped from around 27° Celsius to 12° as the funnel went overhead.  The drop in temperature and the difficulty they had in breathing were related. The density of the air in the funnel would have been equivalent to being at nearly 30,000 feet in elevation, and as warmer, denser air is sucked into low pressure of the funnel, the expansion causes the large drop in temperature.  Touche’, SyFy, Touche’.  Never again will I make fun of your (admittedly sometimes entertaining) movies.  Ice Twisters was simply a movie ahead of its time, ahead of the science behind it.

Move over “Polar Vortex”! Now we have “Atmospheric Rivers” — I just love when the mainstream media gets excited and jumps all over a “new” scientific phenomenon. A few years ago, somebody put a label of “Polar Vortex” on the same kinds of cold snaps the U.S. has always experienced, evidently deciding that just calling it “winter” as we always have wasn’t exciting enough.  Today, I see we have a new entry in the journalistic annals of creating new and exciting ways to describe phenomena that have been around forever. A very significant precipitation event did just recently occur in California, but the same kind of event has occurred countless times throughout history.  The term “Atmospheric Rivers” itself is evidently old, mentioned by a couple of researchers back in the 1990s. Other terms for it in California have been the “Pineapple Express” or “Hawaiian Express”.  Reading this story, however, and you’d think it was the first time such a phenomenon had been discovered or discussed.

February 2016 Temperature Anomalies

An image that shows global temperature anomalies in February of 2016. February was the most “anomalous” month in history up to that point, with the greatest departure from the “normal” for any month that had ever been measured. 2016 as a whole ended up setting yet another global temperature record. Leading the way…much of the Arctic. This graphic shows a temperature anomaly of nearly 12° for much of Arctic, but even greater departures from normal were found this fall and early winter.

3rd straight year of record global temperatures — For the first time ever, we’ve now had three straight years where all-time global temperature records have been broken. As stated by Gavin Schmidt of the Goddard Institute for Space Studies, ““What’s going on in the Arctic is really very impressive; this year was ridiculously off the chart”. Parts of the Arctic were 20 to 30 degrees (Fahrenheit) above normal for much of the fall and early winter, including days with temperatures hovering at or above freezing even at the North Pole. Globally, levels of sea ice have never been lower.  Irrefutable evidence of the continued onslaught of climate change…not that more evidence is needed at this stage, but it comes at a time when a new incoming President and his Party are about to take power in Washington D.C.  Which leads into…

Mixed bag for Trump’s Cabinet on Climate Change — Not a single story, but a collection of stories related to confirmation hearings for Trump’s Cabinet members this week. First the good…incoming Secretary of the Interior, Ryan Zinke, openly disagreed with Trump’s statements on climate change.  He stated “The climate is changing, and man is an influence”, certainly welcome words from a man tasked to manage the Department that oversees Federal lands and natural resources.  Responses related to the issue of climate change were more reserved and mixed from other Trump nominees.  Scott Pruitt, tasked to lead the Environmental Protection Agency said “I do not believe climate change is a hoax”, but he stopped short of saying man was the major cause, or that we need regulation and change to mitigate the effects. Given that EPA is the Federal Agency that can potentially regulate greenhouse gas emissions, it’s not comforting to see a lack of conviction about regulatory action.  The aforementioned Betsy Devos, who could very well be in charge of the Department of Education (GOD I hope not), didn’t specifically comment on climate change in her confirmation hearing, but did offer a simple statement of “I support the teaching of great science“.  Note the word “simple”, a statement that could be attributed to MUCH of her testimony this week.  It’s not encouraging when the Secretary of Education is clearly not even aware of the many programs her agency is responsible for.  Rex Tillerson, an oilman slated to become Secretary of State, did state that the climate is changing and that greenhouse gases are a cause. However, he also stated that the science was murky, saying “The increase in the greenhouse gas concentrations in the atmosphere are having an effect. Our ability to predict that effect is very limited.”  Tillerson’s comments were perhaps the most representative of what’s likely to happen in a Trump administration.  In the face of overwhelming evidence that’s slowly convincing even a scientifically illiterate American public, the stance of many Cabinet members was to recognize climate change as “real”, yet simultaneously state the science is very uncertain. In short, they’re setting the stage to potentially monitor the situation, but not do a damn thing about it.

Sit on your butt and watch your life drain away — That’s the basic message of new research that assessed the biologic “age” of cells, related to the level of physical activity.  Telomeres, little caps on the ends of DNA strands within a cell, gradually shorten as a person ages. Telomeres protect your chromosomes, and a shortening of telomeres is associated with cell “aging”, and increased likelihood of diseases including diabetes and cancer. Interesting study, and one of the first to take this form of measurement and connect it with activity levels.  That’s the price of blogging, I guess…sitting here for hours trying to come up with interesting and clever stories, all while my damned telomeres shorten by the second.

Eating and Sitting

A family sitting AND eating at the same time. As science has proven this week, this could be one of the most dangerous aspects of American life. This, or rampaging Grizzly Bears around our children’s schools.

Don’t eat, live longer — To riff off of Charlton Heston…Damn you, science.  DAMN YOU ALL TO HELL!!  FIRST you have the story above about deadly Ice Twisters, amplifying my already well-ingrained fear of tornadoes.  Then you have the story of your DNA rotting away while you sit still.  And now, this story, noting that restricting calories is one way to ensure a longer life. Survival and health of rhesus monkeys was found to be significantly higher as caloric consumption was reduced.  Great.  What.  The.  Hell.  My favorite pastime is lounging on the couch in the basement, hiding from tornadoes, eating a bowl of ice cream.  Little did I know how much I was putting my life in danger. As a scientist, and as an avowed atheist, I do find it incredibly fascinating that so many things that human beings crave in life, are inherently bad for you.  Eating fatty and sugary foods, relaxing and taking it easy.  From an evolutionary and biologic standpoint, does that make sense?  Does it make sense that the very things we crave can kill us? How does simple biology explain that?  It’s times like this where my belief in a “god” may not be reinforced, but it does reinforce my belief in a “devil”.

10,000-km long “wave” on Venus — The Akatsuki spacecraft captured a spectacular image of Venus in December, marked by a massive, vertical “smile” that stretched nearly pole-to-pole.  The 10,000-km long feature is thought to be a “gravity wave”, which would make it the largest gravity wave observed in the solar system.  It’s thought to have developed from air movement over mountain ranges on the surface of Venus, with the feature then propagating higher into the thick Venetian atmosphere. However, such a feature isn’t easily explained by the current understanding of the surface of Venus and near-surface atmospheric conditions. Either some other explanation is in order, or our understanding of the surface/atmospheric interactions on Venus needs to be reevaluated.

 

%d bloggers like this: