Yes but if you’re betting on a huge long-term economic slowdown then does this blip even matter to your investing strategy?

Well this is interesting to consider. Disasters often create economic activity: maybe millions of rich people will be rebuilding their coastal houses. On the other hand, if it's so hot that humans can not go outside, that will dampen the economy- but I don't see this happening in temperate zones. But it very well could happen in places where there would be future expected economic growth.

Millions of rich people will be attempting to relocate, on top of hundreds of millions of poor people. Some will profit from this in the short term, as they do in the wake of disasters and refugee crises today, but the overall trend will almost certainly be downward.

It's not just climate change either. There's a whole host of interconnected ecological crises brewing, and most people with a stake in the global financial system either don't recognize or believe this, choose to ignore it, or have much more pressing problems (e.g., providing for themselves and their families).

Yes, you can tell by the increase in insurance premiums and plummeting insurance stocks.

If you think you have an investment that will do better in terms of climate change than the general stock market, I'm all ears

Is it a given that climate change would be bad for companies? Changing needs usually means opportunities.