Ice and glaciers capture our imagination and help us visualize climate change. They are one of the most visible ways in which climate change is impacting our world. For a 2007 art project, artist Katie Peterson placed a microphone into Jökulsárlón lagoon near the Vatnajökull ice cap in Iceland. Vatnajökull is the largest ice cap in Iceland, with 30 glaciers flowing from the cap, and it has been eroding since 1930.

She connected the microphone to a mobile phone, and created a neon sculpture of the phone number to show in a gallery space. Visitors could call the number and listen to the ice cap eroding, live.

The microphone and phone number are gone now, but you can listen to a recording of the ice cap on her web site.