Carl Sagan was right

Now, there are policy makers who would like to respond as follows and you have perhaps seen this sort of opinion in the pages of, naturally the editorial page of the Wall Street Journal. It’s the first place to expect a complaint about having to change anything.

‘It’s too uncertain’ they say. This is serious stuff. There are a few scientists with computer models and who can be sure that they know what they are talking about and you want us to turn everything upside down because some scientist say that things are going to get a few degrees warmer. It’s a few degrees warmer on the stage than it is in the audience. You don’t see any catastrophe up here do you?

I’d like to pose the following question: Imagine this kinda thinking back in the height of the Cold War. You know the United States – so, let me ask a question – How much money do you think the United States has spent since 1945 on the Cold War? Sometimes they ask this question then from the back of the audience comes in answer ‘billions and billions‘. A huge underestimate – billions and billions. The amount of money that the United States has spent on the Cold War since 1945 is approximately 10 trillion dollars. Trillion, that’s the big one with the ‘T’. What could you buy with 10 trillion dollars? The answer is: You could buy everything in the United States except the land. Everything. Every building, truck, bus, car, boat, plane, pencil, baby’s diaper. Everything in the United States except the land, that’s what we have spent on the Cold War.

So, now let me ask: How certain was it that the Russians were going to invade? Was it 100% certain? Guess not since they never invaded. What if it was only let say 10% certain? What would advocates of big military buildup have said? We must be prudent. It’s not enough to count on only the most likely circumstance. If the worst happens and it’s really extremely dangerous for us we have to prepare for that. Remote contingencies if there is serious enough have the prepared for. It’s classic military thinking – you prepare for the worst case.

And so now, I ask my friends who are comfortable with that argument, including the editorial page of the Wall Street Journal, why doesn’t that same argument apply to Global Warming. You don’t think it’s 100% likely? Fine. You are entitled to think that. If it’s only a small probability of it happening since the consequences are so serious, don’t you have to make some serious investment to prevent it or mitigate it? I think there’s a double standard of argument working and I don’t think we should permit it.
https://allouryesterdays.info/2025/02/08/feb-9-1990-carl-sagan-on-military-spending-vs-climate-spending/