Actually there is positive computerized modeled proof that global warming is causing Mars to get closer.
The science is that the rising oceans are affecting Earth’s gravitational pull, and Mars just happens to be sucked into Earth’s gravitational sphere of influence.
If Hillary gets elected and shuts down fracking and coal, maybe we have a chance.
Hmmm.
I haven't made a detailed study, but it seems the consensus of Googled "Global Warming on Other Planets" suggests these are phenomena that are observed across the solar system to varying degrees, suggesting more solar influence than the "sky is falling" crowd might otherwise like to take into consideration.