Mark campaigns very actively on climate change and the environment, both locally and in Parliament.

Click here to read about how he is working with local people and organisations in Edinburgh to tackle climate change.

Follow the links to find out more about his work at Westminster in

• holding Government to account
• producing a special report on how the polluter can be made to pay and
• introducing new legislation to boost renewable energy and cut carbon emissions

His work on climate change overlaps with campaigning on fuel poverty and ship-to-ship oil transfers and you can read more about those by following the links.