Between securing the future of humanity, space exploration, and new scientific marvels, what is there to lose? The Mars One project wants to put four people, starting the first planetary colony by 2025. Elon Musk wants to take it to a whole new level, he is hoping to put up to a million people on the red planet in the next forty years or so.
Four people living in tiny pods is quite sustainable, but having a million people and building pressurized environments spanning for miles is very hard to maintain in a hostile world like Mars. A solution to this problem is to turn Mars into a more Earth like environment, but how is this possible?
This is current Mars, covered in hundreds of miles of frozen poles, just like on Earth. The very deceptive thing about Mars is that all the red soil looks like lunar soil, but it's not. Mars is completely covered in permafrost containing high concentrations of methane, just like on Earth.
I know that you've been teaching us about all this in class, but since we're so good at warming up Earth, scientists believe we could warm up the surface of Mars to the point of sustaining liquid water on the surface through one hundred years of global warming. Some scientist have thought about making factories on Mars that pump astronomically more amounts of carbon dioxide into the atmosphere, melting the permafrost which releases methane into the atmosphere causing a feedback loop, and melting the polar icecaps as well.