Jeanette Fitzsimons

Fitzsimons co-led New Zealand's Greens from 1995 to 2009 and showed how a small party can legislate from outside government. Her member's bill became the Energy Efficiency and Conservation Act 2000, creating a national efficiency agency, and in 2009 the Greens signed a deal with John Key's National government that funded a large home insulation programme. Some members thought dealing with the centre-right was a mistake; the insulated houses are the counter-argument.