Like most cities around the world, Singapore is short on land. But with rising awareness over the need to address climate change, the country finds itself facing a daunting new challenge in slashing its carbon emissions. Measuring just 721 square kilometers, Singapore is half the size of metropolitan London, and is densely populated to boot (with a population of 5.6 million compared with London’s nine million). This appears to be an insurmountable problem for the space-constrained country. However, the combination of a concerted masterplan by the government to embrace solar energy, an audacious commercial project to pipe in renewable energy from Australia, and the ingenious application of technology to reduce energy use in data centers may just help Singapore chart its way forward as a green data center hub. According to a biennial report submitted by the Singapore government last year, the country generated more than 50.9 million tons of greenhouse gases in 2014. Under the 2015 Paris Agreement, Singapore agreed to cut emissions intensity from 2005 levels by 36 percent, to be achieved by 2030. Absolute emissions will continue to increase though, under an exemption under co...