CLIMATE CHANGE
The huge problem which has been caused by overuse is what BBC News calls the fossil fuel juggernaut. They go on to quote Bert Metz from the Netherlands Environmental Assessment Agency, who co-chaired the IPCC working group on options for mitigating climate change:
"There is real urgency.
We need to peak emissions within 10 years if we are to keep the global temperature rise to 2C. If we leave it for 25 years, we're already committed to 3C."
2C means about one third of species at risk of extinction, decreased cereal production in the tropics, most coral reefs bleached.
3C puts millions more people at risk of coastal flooding, decreased cereal production at all latitudes and widespread death of coral reefs.
For more information from BBC News >>
Guide to Climate Change >>
Al Gore's "An Inconvenient Truth" >>