The grass is not, in fact, always greener on the other side of the fence. Fences have nothing to do with it. The grass is greenest where it is watered. When crossing over fences, carry water with you and tend the grass wherever you may be.
Mars is essentially in the same orbit... Mars is somewhat the same distance from the Sun, which is very important. We have seen pictures where there are canals, we believe, and water. If there is water, that means there is oxygen. If oxygen, that means we can breathe.
The healthiest route, of course, is not to take the drug at all: but for those who are addicted, prohibition inflicts danger and death. Needlessly. Water would become dangerous if it were banned and handed over to a criminal black market.
If the worst-case scenario about climate change, all the worst predictions, if they never materialize, what will be the harm that is done from having made the decision to respond to it? We would actually leave our air cleaner. We would leave our water cleaner. We would actually make our food supply more secure. Our populations would be healthier because of fewer particulates of pollution in the air – less cost to health care. […] But imagine if the 97 percent of those scientists are correct and the people who say no are wrong. Then the people who say no will have presented us with one of the most catastrophic, grave threats in the history of human life.