Let's at least not be hypocrites and recognize that we're making it harder for future generations to live. Now if people actually cared, we'd see more concern about this little thing called "sustainability," but I guess I'm just a tin foil hat toting fool who's been indoctrinated to care about people who don't exist yet. Live for today, right?
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Yes, there is an objective reason. It's called morality. What makes you any more important then the next generation, or the previous generation? You have the right to live on this Earth, but with that right comes an intrinsic responsibility.