Pale blue dot

Earth Day 2021

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There was time when we believed that we were the center of the universe and that we should have dominion over the Earth. But then Copernicus came along who asserted that the Sun is indeed the center of our solar system, the Moon being the only body that revolved around the Earth. I’m sure you know that this resulted in a bit of an uproar. As for the dominion idea, our use of resources, over-hunting, and factory farming of animals have contributed to climate change and the current sixth extinction. Watch Marvin Gaye’s video, Mercy, Mercy Me (The Ecology), released in 1971.

The following two photos show a contrast between Greenland’s Tunu Glacier in 1933 and 2013. This melt-back is characteristic of ice all around the world, though melt-back varies widely, depending on location.

Source: The Greenland Ice Sheet – 80 years of climate change seen from the air. / Bjørk, Anders Anker; Kjær, Kurt H.; Larsen, Nicolaj Krog; Kjeldsen, Kristian Kjellerup; Khan, Shfaqat Abbas; Funder, Svend Visby; Korsgaard, Niels Jákup. 2014. Abstract from 44th International Arctic Workshop, Boulder, Colorado, United States.

It wasn’t so long ago that Carl Sagan and climate scientists started sounding the alarm that we were going down a dangerous path. Subsequent climate data has revealed that those early projections vastly underestimated what was happening, since we now know that climate change is not a linear but an exponential process. That is, it happens faster and faster over time.

Via Voyager 1

The now famous photograph of Earth as a pale blue dot was taken on February 14, 1990 by the deep space probe, Voyager 1, from a record distance of about 6 billion kilometers (3.7 billion miles). The more recent

Via Cassini

photograph was taken by the deep space probe, Cassini. Though more striking with Saturn in the foreground, it also shows how Earth is but a spec in the cosmos. As Sagan said in his book: Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. (Carl Sagan, The Pale Blue Dot, 1994)

People often say we have to save the Earth. Not so! The Earth will go on just fine without us. The issue is preserving the current biosphere that supports us and the other higher vertebrates. There will always be life on the planet so long as there’s liquid water. As I present every year, here is my fictionalized account of our worst scenario. Let’s do better!

Earth Day 2020

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Iconic Earth
Iconic Earth (NASA: Via Apollo 17

There was time when we believed that we were the center of the universe and that we should have dominion over the Earth. But then Copernicus came along who asserted that the Sun is indeed the center of our solar system, the Moon being the only body that revolved around the Earth. I’m sure you know that this resulted in a bit of an uproar. As for the dominion idea, our use of resources and over-hunting and factory farming of animals has led to climate change and the current sixth extinction. You can see how climate change has played out at Glacier National Park in the following photos.

Grinnell Glacier Overlook: 1920
Grinnell Glacier Overlook: 1940
Grinnell Glacier Overlook: 2006
Grinnell Glacier Overlook: 2013; Public domaine, USGS

It wasn’t so long ago that Carl Sagan and climate scientists started sounding the alarm that we were going down a dangerous path. Subsequent climate data has revealed that those early projections vastly underestimated what was happening, since we now know that climate change is not a linear but an exponential process. That is, it happens faster and faster over time.

Via Voyager 1

The now famous photograph of Earth as a pale blue dot was taken on February 14, 1990 by the deep space probe, Voyager 1, from a record distance of about 6 billion kilometers (3.7 billion miles). The more recent

Via Cassini

photograph was taken by the deep space probe, Cassini. Though more striking with Saturn in the foreground, it also shows how Earth is but a spec in the cosmos. As Sagan said in his book: Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. (Carl Sagan, The Pale Blue Dot, 1994)

People often say we have to save the Earth. Not so! The Earth will go on just fine without us. The issue is preserving the current biosphere that supports us and the other higher vertebrates. There will always be life on the planet so long as there’s liquid water. Here is my fictionalized account of our worst scenario. Let’s do better!

Happy Earth Day!