To mark the beginning of this year's Climate Week which began on Monday, a huge countdown clock was unveiled on Saturday. A large digital clock displayed on a skyscraper in New York City's Union square will now remind people of how little time is left before global temperatures hit a critical high. Metronome, the famed public art project is now the 'Climate Clock', as Artist Andrew Boyd and Gan Golan call it. The 2 artists have reprogrammed the digital clock to coincide it with this year's climate week. While the climate clock continues to tick, as of Saturday at 3.20 pm the world had merely 7 years, 103 days, 15 hours 40 minutes, 7 seconds to prevent the effects of global warming from becoming irreversible. The deadline is based on calculations from the Mercator Research Institute on Global Commons and Climate change. The clock will be on display until the end of the Climate week that is September 27.