Author posts

What Makes the Earth Rare

What is it about the Earth that has allowed life to continue for such long periods of time? The most important factor is plate tectonics. 

The Medea Hypothesis: All Life is Suicidal

If you really look at the history of life on this planet, you see a lot of biologically-produced catastrophes. Where do they come from? From life itself. 

Extinction is Not in Our Genes, But Misery Might Be

Peter Ward: Not going extinct doesn’t mean you’re not going to be miserable, and by misery I mean, wholesale, enormous human mortality.

Is Our Planet Going the Way of the Dinosaurs?

We now think the big mass extinctions were caused by hydrogen sulfide bacteria. Two hundred hydrogen sulfide molecules among a million air molecules is enough to kill a human.

What is the Likelihood of an Asteroid Impact?

Peter Ward: We will get hit again.  It is only a matter of time until we get hit by an asteroid the same size of what killed off the dinosaurs, should humanity last long enough, that is. 

What Global Warming of the Past Tells Us About the Future

A large asteroid hit us in the Yucatan Peninsula causing the mass extinction. Was the impact just the coup de grace coming on an already affected world?

What Deep Time Can Tell Us About Climate Change

We are now at levels that the world has not seen for the last 40 million years and we will soon be at carbon dioxide levels that existed 100 million years ago when we had a true hot house world.  

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