Sangh interests have to contend with actual economists and sensible people who realize that rocking the boat too much would be a disaster . Which works out for the better I guess . Not too different in the realm of foreign relations too . It ' s kinda like Trump doing uturns where his own more ridiculous ideas get shot down or tempered . Rhetoric and pandering to idiot interest groups happen all over the world of course . <| sep |> Venus is actually too close to be in the goldilocks zone of the sun even in the optimistic estimate . Mars by comparison is within the habitable zone even in the pessimistic estimate it only doesn ' t have liquid water on its surface because it ' s atmospheric pressure is too low . Venus doesn ' t have a magnetosphere . None whatsoever . That ' s part of the reason why Venus is the driest place in the solar system all of the water in its crust , even water chemically bound to rocks , has been baked out by the heat and been vaporized into the atmosphere , where it floats up to the top and is blasted away by solar wind . This is why even though Venus may have had oceans in the past , it will never have them again , there simply isn ' t enough water . Venus actually has more sulfuric acid than water . To make Venus anything close to habitable , we ' d have two main problems to overcome . We ' d need to thin the atmosphere and lower the temperature . The best way to do both would be to build a huge sunshade blocking 100 % of the suns light , allowing the temperature to plummet fast enough that in a few hundred years the atmosphere would freeze out . Once the atmosphere was frozen we could build mass drivers and use them to fire the frozen carbon dioxide out on an escape velocity of Venus , where they ' d sublimate around the sun and never be able to return to Venus . We ' d separate out the nitrogen ice and stockpile it for later during this process . Eventually , we would have launched enough CO 2 into space that we could allow light from the sun to reheat Venus and vaporize the ices into an atmosphere mainly composed of nitrogen , but which would still contain a toxic amount of CO 2 . Venus at this point would have an average temperature about the same as the Earth ' s , with shallow oceans of concentrated sulfuric acid and a nitrogen atmosphere about 3 x as thick as the Earth ' s . Next we ' d have to dig up millions of tons of fresh rocks from underground to react with the acid until it was mostly neutralized . Now , finally , we could seed the surface with photosynthetic bacteria able to break down the CO 2 in the atmosphere into oxygen , and once enough oxygen built up , we could release plants and other forms of life . This terraformed Venus would always require a sunshade , and since it is almost certainly volcanically active we would need to deal with large scale eruptions quite often . This entire process would most likely take thousands and thousands of years at least , but it ' s the only way that doesn ' t involve either diverting thousands of asteroids or delivering trillions of tons of metallic calcium or other even more difficult options . The biggest problem with Venus is that we wouldn ' t be able to colonize it until , at the earliest , the ' frozen atmosphere ' stage , which requires us to build a massive orbiting solar shade . Colonizing Mars , by comparison , could begin as Mars exists currently today . There ' s just no way that Mars colonization could take as long or be as difficult as Venus colonization .