> having more kids than adults (population growth) Good news on that point is that the number of children in the world already peaked several years ago. The co

> having more kids than adults (population growth) Good news on that point is that the number of children in the world already peaked several years ago. The continuing population growth is now being driven solely by life expectancy increases. Growth in lifespans in developed countries seems to be running out of steam, so once developing countries have caught up we would expect population growth to stop fairly soon afterwards.