Trackers to be fitted on Wiltshire Council vehicles
Vehicle trackers are to be fitted to vehicles belonging to Wiltshire Council in order to monitor energy-efficient driving.
The authority wants to reduce its carbon footprint by 20% by 2014.
The pledge has been announced during the national Climate Week, which runs from 21 to 27 March. Various events are taking place around the country.
A council spokeswoman said the trackers will pick up when drivers brake or accelerate too harshly.
She said the authority has to pay the government £12 per tonne of carbon dioxide (CO2) produced from the authority's buildings, but not from transport.