I also concur that overpopulation is a major problem. There seems to be a trajectory of too many humans for this planet to sustain, unless we dramatically change the way we consume our own resources.
I'm going to get slammed for this, but I hope in the future governments apply some form of a consumption tax to families that are greater than their own replacement value. Also, education all day long about the risks of large families, and making sure people have easy and affordable access to birth control methods.
I would also be in favor of legalized euthanasia with more liberal thresholds, and with a proper process structure in place to ensure all corners are covered with finances, family, work, etc. Individuals should be able to more freely allow themselves to perish. I am ready for the onslaught of critique
