Alongside renewable energy, green tech is tipped to become employment sector number one in the next decades if you believe reports by major organizations covering green jobs. But my hunch is to keep a check of nano technology as well. Because green technology's tendency to thrive on clever solutions to reduce energy usage is all great but it boils down to a rather finite activity.

Refugees are moving to Antarctica by 2030, the Olympics are held only in cyberspace and central Australia has been abandoned as too dry, according to exotic scenarios for climate change on Monday.

British-based Forum for the Future, a charitable think-tank, and researchers from Hewlett-Packard Labs, said they wanted to stir debate about how to avert the worst effects of global warming by presenting a radical set of possible futures.

Elephants in Kenya are sending text messages to warn wildlife rangers that they are heading for the crops of neighbouring villages.