What the fuck is this bullshit?

No, I want to ban 95% of it. The straw man you describe, were he to exist, would not be an existential threat to what passes for human civilisation. He'd be an idiot, and offsets indulgences are one of the non-solutions we need to be kicking into the long grass, while it's still there, along with geoengineering but,…

What nobody seems to consider is the possibility that we could make the world a bit less abusive. I've had it with right-wingers telling me that being nasty, abusive and greedy is good. It's not.

I'm going to try to ensure this doesn't turn into too long a post.

Him I've heard of. I have various thoughts on that guy, but repeating them would probably violate the ToS.

1) As has been pointed out, your assumption that Greenland was green at this point was faulty.

Here's one Gawker article on why these deniers should be arrested and charged. Under the circumstances, I think my suggestion is pretty mild.

I think it's time us users started lobbying Kinja to follow the lead of the London Guardian and block comments repeating climate denier points that have been refuted over and over again. Too much time is being wasted repeating ourselves in proving that these hired shills are lying.

What for? Here is an article on why geoengineering would be a bad idea.

How does this invalidate the result, or the threat?

They're dating the rock to 300-600mya. They're dating the impact to 300mya. I'm sure there's a window for these things, though. The Woodleigh impact was implicated in the Carboniferous Rainforest Collapse, but it's now thought this one occurred in the late Devonian.

The Chicxulub crater is only 180km in diameter, less than half that of the Warburton crater. I think the Aussies have this one.

while also ensuring the de-extincted calf has a life worth living.

It sounds like you are arguing for a position where we do nothing about our pollution except do things that allow a few to make a short-term profit out of it.

The snag with this is that, with ocean acidification, molluscs like clams are having increasing difficulty building shells.

This is beautiful, but:

It's supposed to be a sheaf of wheat and a cornucopia. ;)

The notion of it being most likely that we'll encounter machine intelligence (assuming we encounter anything at all) runs into one simple question: Why bother?

Surely if it were a Von Neumann machine we would see evidence of its offspring continuing to dismantle the asteroid belt? Just a thought: willing to listen to evidence otherwise.

Presumably lifeless, therefore with limited chance of unintended biological cross-contamination; probably water-rich; close to supplies of metals in the asteroids; shallow gravity well. Big enough to hollow out for a substantial colony. Sounds like first-rate real estate.