Experts speakers argue their cases ahead of an Earthwatch debate in London this week.

Mission Critical is a debate hosted by Earthwatch to decide on the most important environmental priority for the next 40 years. (...)

The article:
http://www.guardian.co.uk/environment/blog/2011/oct/12/top-environmental-priority-debate-earthwatch

More about:

http://www.scientificamerican.com/article.cfm?id=scarce-resources-climate-biggest-th

http://blog.panorama.it/hitechescienza/2011/10/18/fame-guerre-e-malattie-scenari-da-incubo-del-clima-che-cambia/

From Eartwatch Institute website:
http://www.earthwatch.org/europe/events/