The art of effective protest: from flamenco flash mobs to craftivism

Environmental and social campaigners are getting creative by using illustration, craft and dance to put sustained pressure on business and governments

The image of a tiny, inflatable Greenpeace boat circling Shell's Brent Spar became a defining moment in corporate activism.

That was 1995. NGOs have always met big challenges with ingenuity, but two decades later we are seeing campaigning groups take on corporate power and governments in different, arguably more subtle ways. Here are just a few examples.