Authorities may have banned protest marches during the COP21 climate summit, but that hasn't stopped campaigners from finding other ways to express their discontent. Artists and activists have joined together to slam the 'hypocrisy' of companies and heads of state involved in COP21, using guerilla advertising.
The 12-day summit, which officially began on Monday, aims to reach a globally binding accord to limit warming to 2C above pre-Industrial revolution levels.
But a series of over 600 artworks, displayed on billboards and bus stops across Paris, points out that the corporate sponsors are not so climate-friendly themselves, and accuses politicians including President Francois Hollande and UK Prime Minister David Cameron of inaction.
The UK-based campaign Brandalism claimed responsibility for the adverts, saying in a statement that it hoped to "highlight the links between advertising, consumerism, fossil fuel dependency and climate change".
Here is a look at some of the group's work.
See a collection of the advertisements in the video below: