The researchers created a computer model simulating the impact on weather patterns of a gradual reduction of winter ice cover in the Barents-Kara sea, north of Scandinavia.

Now his cops feed instantaneous crime statistics into computer maps to spot trends and "find out where the mosquitoes are breeding", and success is measured by crime reduction.

The team conducted a computer-based analysis to determine the impact of a 3-g-per-day reduction in sodium intake on rates of heart disease and death.