Says the BBC:

An international group of scientists are aiming to create a simulator that can replicate everything happening on Earth - from global weather patterns and the spread of diseases to international financial transactions or congestion on Milton Keynes' roads.

Nicknamed the Living Earth Simulator (LES), the project aims to advance the scientific understanding of what is taking place on the planet, encapsulating the human actions that shape societies and the environmental forces that define the physical world.

What do you want to bet that once they get this simulated Earth built, they're going to spend the first two weeks destroying it over and over again? Also: You can expect a lot more Matrix-like movies (what if we're already in the simulated Earth, man?) as soon as this project gets off the ground.