Climate model forecast is revised

The UK Met Office has revised one of its forecasts for how much the world may warm in the next few years.

It says the average temperature is likely to be 0.43 C above the long-term average by 2017, as opposed to an earlier forecast suggesting a difference of 0.54C.

The explanation is that a new kind of computer model using different parameters has been used.
The Met Office stresses that the work is experimental.

It says it still stands by its longer-term projections that forecast significant warming over the course of this century.

The forecasts are all based on a comparison with the average global temperature over the period 1971-2000.

READ MORE:  http://www.bbc.co.uk/news/science-environment-20947224