Indonesia against climate change. Indonesia is the world’s third largest emitter of greenhouse gases (GHG), the world’s fourth most populous country, and is also home to 40% of the planet’s known geothermal energy potential, but only about 4% is currently exploited. Nationally legislated energy goals include 17% renewable energy generation by 2025, a 30% improvement in energy efficiency by 2025, and GHG emissions 30% below business as usual forecasts by 2020. Renewable energy sources will account for 60% of the 10,000MW of new energy capacity that Indonesia plans to develop by 2014 to meet growing energy demand. A central feature of all of these goals involves the successful development of Indonesia’s geothermal potential.