 Travis Perkins LSE:TPK PLC said it has trimmed emissions from its vehicles by 5 over two years, as part of its target to reduce carbon by 80 before 2035. The builders merchant said it moved all its sites to a 100 renewable electricity tariff in November, running some of its fork-lift trucks on cleaner fuel, and has initiated a driver incentive scheme to get more miles to the gallon for delivery trucks. 