What do we do?
Bill Gates has the right idea. Mobilize money, talent and ideas. Don't wait for the friggin governments. They can't think past the next election.
How do we stop it increasing?
People of means will regulate their family size based on the economics of raising a family. Nature will take care of the rest through disease, famine and pestilence.
The Chinese idea of one child families is having an interesting backlash. Many families opted for sons. So the current generation of males is competing for fewer and fewer females. Not only are they running out of room, they're running out of womb.
How do we reduce it?
Nature has a down-sizing mechanism called DEATH.
What will happen if we don't?
Not much will happen for the Haves. They will surivive at the expense of the HaveNots.
Should we care?
Morally? Ethically? Yes. Will we? Uncertain. Tribalism will kick in. Protect your own, first.
(:raig