Since the global protests of September 2019, I’ve been looking for words to describe what is happening in climate campaigning and policy formation, and for historical precedents which may help us understand where we’re going.
Calls for action are getting stronger, and they’re coming from many directions: scientists, politicians, the UN, and the emerging generation.
Greta Thunberg, the best-known of the young people advocating for science-based climate policies, has been called a “revolutionary” both by admirers and critics. This is because she wants change that is serious and fast.
Can it happen in the world today?
I think the answer is yes. A process of serious political change is not only possible; it has already begun. Global youth-led demonstrations are part of this process, and changing voter behaviour is another part.
We’re in a time when the wind of change is blowing, as Harold Macmillan said about Africa back in 1960.
Climate-conscious people demonstrated in…
"Part of the horror of the crucifixion was the denial of the proper rites of burial. " Suetonius mentions an incident where Julius Caesar granted a group of pirates the clemency of a swift death, but afterwards crucified their dead bodies. He respected them enough that he didn't want to torture them, but he did want to make them into a spectacle of utter defeat.
Yes, scientific revolutions happen. Half a century ago, mainstream science said the entire family of dinosaurs died out without leaving any descendants. Today it is mainstream science that birds belong to the dinosaur family... But we don't have to choose between thinking that "science is real" and "science is fiction". A third option is to think of science as a map, and nature as the territory the map is about. The map is not the territory, but the territory itself is a reality, to which the map corresponds imperfectly. Scientific revolutions are about revising the map when more information about the territory has been found..
But for most of those 2.5 billion years there was almost no free oxygen (O2) in Earth's atmosphere. (See the page "Geological history of oxygen" in Wikipedia.) This oxygen-less Earth was an environment where many forms of microbial life could emerge and flourish, but not mitochondria which are adapted to process O2.
Unlike other evolutionary adaptations, there is no selective pressure that would place these two compatible cells — among 0.3 nonillion others on the planet — close enough to each other for such a miracle to occur. It was a pure chance event after eons of evolution that changed the course of life on Ear…
Have you heard of the “outside-in” hypothesis of eucaryote origin proposed by David Baum and Buzz Baum? In this model, the ancestors of mitochondria originally lived just outside another, larger species of cell, with which they already had a mutually beneficial relationship. In which case there was selective pressure to keep the two species of cell close to one another. And the eventual incorporation of the mitochondria into the larger cell was not a miracle of pure chance after all.
I agree that sentiment plays a part in theorising about presence or absence of life beyond Earth… but not necessarily in the way you think. I’d suggest that sentiment, in the form of excitement about our own current and future technology, leads us to make working assumptions about our future that may or may not be true, such as the idea that we’ll soon be spreading through the galaxy as fast as our imagined future space ships can fly. …
Would colonies on Mars or in orbit be “places where whatever conflicts and disasters that threaten Earth are less able to reach”? Aren’t most of the threats we face right now due to our failure to use high technology in a sustainable way? Wouldn’t space colonists be even more dependent on high technology, therefore even more vulnerable to system collapse?
“Facts are stubborn things.” — John Adams (1735 to 1826)
“The current, best available science is not opinions — it’s facts.” — Greta Thunberg September 2019
It was also a revolt for denial—part of a larger, on-going conflict between those who take well-established facts seriously, and those who deny facts that don’t fit their narrative.
Like Donald J. Trump, the insurrectionists were in denial of Biden’s election victory, which had already been confirmed by the Electoral College and…
Someone who likes sharing factual information and fragments of the big picture