So basically we're in for a hell of a ride until the advanced countries can figure out how to make frost reistent crops.

We already have some cold-resistant crops, but most staple crops, such as wheat, corn, rye, millet, and buckwheat all suffer very badly from near-zero temperatures.

There is some new research out there which indicates that there is a specific enzyme in many crop plants which determines their tolerance to frost, and learning how to manipulate or modify this could result in much hardier and more frost-tolerant plants.

What about the 3rd world. Will globall cooling bring rains to the Sahara or just frost?

Unfortunately I just don't know enough about climatology to say anything definite. I do think that you would likely see deserts like the Sahara, much of Texas and Arizona, and even large parts of northern California, experience significant greening – because that tends to happen in desert areas.

I also think that you will see significantly worse hurricane events from global cooling, due to the fact that hurricanes and cyclones form from temperature differences between the equator and the poles. Global cooling means significantly colder temperatures at the poles and through the temperate zones, but the equator stays roughly the same.

One could argue from pure logic that we should see significantly nastier hurricane activity during periods of global warming too, but the NOAA records show that this has not happened.

What world economic links can be sacrificed that'll beef up resilency [sic] without wrecking the world economy in one go?

At this point, basically none of them. The world is too interconnected. If the US economy implodes, the rest of the world goes with it, immediately. The world depends on the US to be its economic engine. If it blows up, it would be like watching a jet turbine explode.

The thing to remember, though, is that climate events will not cause economic collapse overnight. That takes months and years to achieve.

What WILL cause overnight collapse is a plague. If you look at what happened in SE Asia in 2003, you will see exactly what I mean. The economy of the entire region basically came screeching to a halt for about three months. The damage was tremendous. Fortunately it was repaired within a year, but that was a truly brutal period.

I know. I was in Singapore at the time.

What about the 3rd world. Will globall cooling bring rains to the Sahara or just frost?
This isn't a dumbass question but curiosity.
One possible solution is to take a hard look at selective deconnection. What world economic links can be sacrificed that'll beef up resilency without wrecking the world economy in one go?(I'm think of both skin in the game and anti fragility policies a Nassim Nicholas Taleb)

xavier