Derby Telegraph tells us about a scheme to use low-emission pool cars for Derbyshire health workers.
Derbyshire Community Health Services NHS Trust teamed up with Co-wheels just over a year ago to introduce 10 Toyota Aygo cars primarily for the benefit of health workers, often travelling to remote parts of the county.
In the first year of the Co-wheels trial, pool car users transferred 54,900 miles from their own higher polluting vehicles and saved an estimated 5.3 tonnes of CO2.
So that's saved about 0.000000015% of global CO2 emissions for 2013. Scale those 10 cars up to about 68 billion cars and Derbyshire could solve the global warming issue.