Could we set aside half the Earth for nature?

Renowned biologist E O Wilson wants to set aside half of the planet as protected areas for nature. But is this possible? And, if so, how would it work? As of today, the only place in the universe where we are certain life exists is on our little home, the third planet from the sun. But also as of today, species on Earth are winking out at rates likely not seen since the demise of the dinosaurs. If we don't change our ways, we will witness a mass extinction event that will not only leave our world a far more boring and lonely place, but will undercut the very survival of our species. So, what do we do? Continue reading...