A Greenpeace activist hands out black balloons symbolizing electricity from coal plants in front of Amazon headquarters in Seattle, April 19, 2012. Other activists climbed the future headquarters building opposite Microsoft offices and hung a giant banner reading "Amazon, Microsoft, How Clean is your Cloud?" The environmental group is bringing attention to Amazon and other technology companies that rely on energy from coal to power their data centers for cloud computing.
Greenpeace. Used with permission from Molly Dorozenski firstname.lastname@example.org.