"PCS is one of the most important unions in the country with 240,000 members and I am delighted to be taking our groundbreaking message to hundreds of activists at their 2010 conference.
"Almost 90% of our transport generated greenhouse gases come from cars. If Scotland is to meet our target of reducing CO2 emissions by 2020 we need to persuade people to leave their cars at home. The best way to do that is to offer them a better alternative. The evidence shows that free public transport will achieve that objective if the network is reliable and interconnected. Cities all over the world are examining this approach, cities such as San Francisco, Melbourne and Copenhagen. Colin Fox SSP