Malthus would say disease, famine, and war. But the new world brought urbanization and birth control, which appears to be the most effective. And since we are

Malthus would say disease, famine, and war. But the new world brought urbanization and birth control, which appears to be the most effective. And since we are discussion overpopulation, I need to emphasize that the 8 billion people in the world (holy shit, it was 3.6 billion when I was born. I'm not that old) isn't the important metric. The important metric is the lifestyle / resources consumed per person. China, India, etc all want US-type lifestyles, personal vehicles, abundant and varied food. Yeah, THAT can't be sustained with our population. Our world survives because about a billion people live like that, probably 2 billion / 25% live in poverty (translate poverty to "doesn't consume a lot"), and the rest live spartan lifestyles. The danger of global warming isn't really the heat or weather changes. The gradual pressure applied by global warming intensifies geopolitical conflict and reduces viability of farmland, the "war" and "famine" of malthus. It probably will increase disease too, but modern technology seemingly can handle that a lot better than back in Malthus's time.