By Bradford Plumer Sometime around 2050, there are going to be nine billion people roaming this planet—two billion more than there are today. It's a safe bet that all those folks will want to eat. And that's... an incredibly daunting prospect.

Excessive consumption has spread to developing countries and could wipe out efforts to slow climate change, Worldwatch Institute says.

Africa's rapidly growing population projected to see urbanisation, economic growth, health and climate problems

By JOHN M. BRODER

WASHINGTON — Humanity would need five Earths to produce the resources needed if everyone lived as profligately as Americans, according to a report issued Tuesday.

cnn

Rome, Italy (CNN) -- Somewhere in the world, a child dies of hunger every five seconds -- even though the planet has more than enough food for all.

If you're wondering how "close" two places are, a geographic map doesn't help much anymore. If the airports are good--or if there's a bullet train nearby--hundreds of miles might as well be down the street.