Thanks to the NAEE weekly round-up for alerting me to EO Wilson's venture: Nature Needs Half.
The idea here is that nature needs sufficient space if it is to function properly for the benefit of all life on Earth. This means, they say, keeping at least half the planet wild and intact with large, connected eco-regions, both now and in the future.
This seems a necessary idea, and half the earth doesn't seem too much to ask. However, given my recent post on T3, the tiger that tried to walk home, Wilson and his colleagues will have their work cut out – as will we all.