What had Boris Johnson done for the environment in 2008?

In 2008, Boris Johnson, then the Mayor of London, implemented several initiatives aimed at improving the environment. He launched the "Boris Bikes" cycle hire scheme to promote cycling as a sustainable mode of transport and reduce congestion. Additionally, he prioritized the expansion of green spaces and invested in public transportation upgrades, including the introduction of low-emission buses. These efforts were part of his broader goal to enhance air quality and tackle climate change in the city.