Climate change 2009: faster change and more serious risks

source: Dept. of Climate Change
"Prepared by Professor Will Steffen from the ANU Climate Change Institute, ‘Climate change 2009: Faster change and more serious risks’ draws on the science of climate change since the Intergovernmental Panel on Climate Change’s 2007 Fourth Assessment Report.

Key findings of the report include:

- The climate system appears to be changing faster than earlier thought likely.

- The need for effective reduction in greenhouse gas emissions is urgent, to avoid the risk of crossing dangerous thresholds in the climate system.

- Once thresholds in ice sheet and carbon cycle dynamics are crossed, such processes cannot be stopped or reversed by human intervention."