ritz627 wrote:Now this may sound a bit crazy, and it is in a way, but we should start thinking about other planets as an option i.e. mars. Take note that this is for the distant future. Now I admit, this will take a while but it is a serious suggestion being proposed by many people. It still considered somewhat of myth, but hear me out on this one:
Water and other necessary chemicals for sustaining life have been found to be present on mars. Unfortunately, the water is frozen underground. So we would need to warm up mars. We know how to do that, we have been doing it for years on earth. Emit mass amounts of carbon dioxide and other greenhouse gases into the atmosphere through what are essentially greenhouse gas factories, spilling out a much greater amount of greenhouse gases than on earth. With this, it would take about 100 years to warm up mars past the freezing point to melt the ice and create water. The soil, believe it or not is fertile enough for some plant life, so we introduce plants into the environment, and without predators, and mass amounts of carbon dioxide as energy the plants (in theory) will flourish. The plants then release oxygen making the atmosphere habitable to humans - without any oxygen masks, only a pressure suit until the pressure eventually equalizes. Of course this process would take a few hundred years or so, but within the span of humanity, that is a small amount of time to wait. This still seems a bit out of reach seeing that humans haven't even stepped foot on mars yet, but it is still an option being seriously considered by many astronomers, and others. Yea, its crazy, but it just might work. And you don't have to kill any babies. Well maybe a few.
The main problem with this, as Unriggable says, is Mars severely lacks Nitrogen, making it a huge challenge to actually grow any kind of plant life.
Also there is no way the entire prosess can take 100 years. Basically you are planning to rerun the evolution of life on earth; a process which took billions of years. First Mars would have to be seeded with sulphur breathing bacteria (or something else which cn put a lot of CO
2 in the air), then anerobic bacteria and finally some form of aerobic bacteria to keep up the oxygen stocks. At absolute minimum, using some variety of super-bacteria or gigantic terraforming machines, the entire process might take a few tens or hundreds of thousands of years.
This isn't including the time it'll take to move your hundreds of thousands of comets that are supplying the necessary Nitrogen into orbit, or the setbacks you'll suffer from dropping them on the planet.
It's not really worth the effort.
Stick with comets and asteriods. Each one can support a few hundred people almost indefinately, depending on how efficient their recycling technology is and there are billions upon billions of them in the Solar System alone.
We own all your helmets, we own all your shoes, we own all your generals. Touch us and you loooose...
The Rogue State!