Nature: Indonesias Central Kalimantan province, a lightly populated swathe of Borneo, is a hotbed for greenhouse gases that are emitted through deforestation, family farming and industrial palm-oil production. Last year, these activities fuelled devastating fires that torched more than 400,000 hectares in the province and at least 2.5 million hectares across the developing nation. By some estimates, the fires released into the atmosphere more than twice as much carbon as Germany emits in a year. Calculating...