Visual artist Nele Azevedo works with video, installation and urban interventions, but she’s best known for her “Melting Men” interventions that she stages in cities across the globe. Azevedo carves thousands of small figures and places them on city’s monuments where audiences congregate to watch them melt. Her ice sculptures are meant to question the role of monuments in cities, but Azevedo says she’s glad her art can also “speak of urgent matters that threaten our existence on this planet.” Although she says she’s not a climate activist, in 2009 Azevedo teamed up with the World Wildlife Fund to place 1,000 of her ice figures on steps in Berlin’s Gendarmenmarkt Square to show the effects of climate change. The installation was timed to correspond with the release of the WWF’s report on Arctic warming.