The Sahara Desert turns green, as does the Arabian Peninsula. The American Southeast would similarly turn arid. The changes in the oceans are just as stark. Bending in the opposite direction brings warm surface water from the equator up along coasts accustomed to cooler currents. But remarkably, the locations where the conveyor belt drops from the surface to the seafloor change. It shifts a bit near Antarctica, but in the North it dies in the Atlantic and emerges in the Pacific Ocean, instead.
Currently, Atlantic currents carry over half the heat energy in the ocean from the equator toward the North Pole. That seesaw disappears. Instead, a new temperature oscillation in the Indian Ocean dominates.
Apart from being fun to imagine, the surprising parts of this simulation can give researchers new things to think about. The fact that the ocean conveyor belt mixes downward in the North Atlantic rather than the North Pacific, for example, is an interesting puzzle that has been debated. Whole agricultural area would likely have to move or the farmers plant new crops, and many cities would grow in new favorable areas, while others would decline.
The earth has what we call a pro-grade SPIN. So, if the earth was on retrograde rotation, then it would spin in opposite direction of earth revolution orbit around the Sun.
All planets in the Solar system orbit in the same direction as Earth around Sun. Most planets spin pro-grade but there are several notable exceptions such as Pluto, Uranus, and Venus among other objects in the Solar System.
What would happen if the world rotated in the opposite direction than it already does? Answer 1: This is a very interesting question! As Jon Stewart explains:. Tyson has good reason to be concerned: The planet's spin is not to be messed with if you like life on Earth pretty much the way it is. Venus is the only planet that spins in the opposite direction, which is believed to be because of a major collision billions of years ago. Uranus spins on an extreme angle , but not backwards.
Though Luhman says that our planet has "almost certainly" spun in its current direction, the speed of the spin has changed dramatically over time. The only real way the Earth could start spinning in the other direction would be if there were a massive collision, such as with another planet. But say you could by magic change the direction of the Earth without that sort of calamity, what would happen then? The BBC's meteorogist Peter Gibbs has worked through this thought experiment , and his answers, though very back-of-the-envelope, give you an idea of just how much of our climate depends on the planet's current rotational direction -- beyond the obvious shift to a sun rising in the west and setting in the east.
The more consequential result of a reverse spin, Gibbs explains, would be to upend the pattern of the Coriolis effect, which "transfers the spin of the earth into the motion of winds around a weather system.
The jet stream too would reverse, and that would dramatically change weather patterns.
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