Researchers at the Hadley Center have developed a more accurate model to predict climate variations. Called the Decadal Climate Prediction System it offers predictions for the coming decade rather then a century ahead. This makes it a more relevant tool for policy planners.
The accuracy of this model is based on detailed observations and a better understanding of how the oceans influence the climate. This has been made possible by basically superior data collection through satellites.
The assessment of climate change remains the same, that is global warming will continue. Average temperatures will likely to be 0.3 C higher in 2014 then in 2004.
Most importantly much of this climate change can be tackled by changing human consumption patterns. Increased use of renewable energy, reducing fossil fuel consumption, increasing energy efficiency and reducing deforestation are meaningful steps.
What is interesting is that it is possible to check greenhouse emissions at a reasonable cost. But, governments will have to play a more important role in doing so. Affordable technology is available. What is needed are proper economic incentives and other policy incentives by various governments acting in concert rather than independently of each other.