ICT-enabled sustainability and energy efficiency initiatives are more than just a challenge: they also represent a great opportunity. A paradigm shift to a low-carbon economy by 2050 has the potential to write the next chapter of technological innovation. To realize this potential will require a third – this time a green – industrial revolution, which must harness the power of the market to deliver on this environmental imperative. Executed properly, the ICT-enabled part of this revolution could have a greater impact than any other sustainable development initiative in history. The ICT industry is well positioned to support the enablement of sustainability initiatives across a broad range of industries and capitalize on these emerging business opportunities.