If you want to get inside how the media frames and shapes our collective understanding of climate change, there’s one person who understands it best: British environmental campaigner George Marshall.
As the new director of the British museum starts work, communities from around the world have sent objects to symbolise their oppression by the museum's sponsor, BP.
The Guardian is publishing articles in partnership with one of the world's most notorious oil companies, despite running a campaign to divest from them.