A very good article in this month's Physics Today. It describes the physics of climate modeling, a very complex system that certainly requires a lot of computational power.
One aspect of this article is the highlight on what is know as the "emergent" phenomenon. I have mentioned this earlier in regards to debunking the myth of the "Theory of Everything", especially with regards to condensed matter systems. So this article is another example of such emergent behavior that detailed understanding at the microscopic scale is hopeless in describing such large-scale effects.
Zz.
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