 How will finding uranium on Mars aid the problem on Earth?
The planet itself was tough enough—barren, desolate, forbidding; enough to stop the most adventurous and dedicated. She had been just as much inflamed by the idea of coming to Mars to help in the search for uranium as I was. Earth needed radioactives, and the only way to get them was to get out and look. With every source of uranium mined dry on Earth, we had tried other possibilities. Project Sea-Dredge was trying to get uranium from the oceans. So, Mars. There's not much uranium on Mars, and it's not easy to find or any cinch to mine. It's a stopgap effort, just to keep things moving until Project Sea-Dredge starts functioning.
 It can hopefully sustain Earth's industries until the underwater project yields results
 In combination with the underwater project, it will give Earth at least 300 more years of fuel  It will cause more problems, because neighboring countries will fight over the small amount of fuel  It will render the underwater project unnecessary  It can hopefully sustain Earth's industries until the underwater project yields results