UNINTENDED CONSEQUENCES
This week I have to write about a book I’m just about to finish. It’s titled Under a White Sky by Elizabeth Kolbert. Kolbert won a Pulitzer Prize for her book, The Sixth Extinction which I read a few years ago.
It was a very interesting book. I learned that over the last half-billion years, there have been five mass extinctions, when the diversity of life on earth suddenly and dramatically contracted. Scientists around the world are currently monitoring the sixth extinction, predicted to be the most devastating extinction event since the asteroid impact that wiped out the dinosaurs.
Now reading Under a White Sky I’m learning about what steps are being taken (or more specifically, being explored) to turn around climate change. The question is, can we change nature in order to save it?
I first heard of ‘geoengineering’ at a 2019 Nobel Conference held at Gustavus Adolphus College in Minnesota. The Conference that year was titled ‘Climate Changed’. There were 7 lectures over the course of 2 days and David Keith, who presented “How Might Solar Geoengineering Fit Into Sound Climate Policy?” was the sixth speaker. He really got my attention. Geoengineering manages solar radiation by deflecting some of it away from earth.
I can’t go into a lot of detail as some of the information is way over my head, but reading Kolbert’s book educated me a little further. I learned that there are research activities taking place all over the world that are looking into multiple ways of reducing CO2 from our atmosphere. The scary part is there are multiple thoughts on what can be injected (seeded) into the atmosphere to ‘capture’ the CO2. Everything from crushed diamonds to silver iodide, and several other possibilities….all of which make me squirm a little. You just have to wonder about ‘unintended consequences’.
As an example, in April 1815 a volcano erupted on the island of Tambora, an Indonesian island, which turned summer into winter throughout Europe. The eruption caused significant global cooling to the point of crop failure and starvation of large numbers of people. This happened due to the volcanic dust that entered the atmosphere and blocked the sun.
While this was not ‘an unintended consequence’, no one had a hand in launching or controlling the outcome of a volcanic eruption, the same cannot be said for geoengineering.
Certainly, climate change is a very significant global problem, and no one seems to have yet an answer on how to address the issue, I sure hope that those scientists who are moving forward toward any kind of action, have a firm grip on ‘unintended consequences.’
Or things could get a whole lot worse!
(One little side note: When I checked the book out of the library a staff person told me I had just saved the book!? It had not been checked out in over 2 years….now because of my borrowing it, it just gained another 2 year shelf life. Sure hope someone else finds it over the next 2 years.)


