Deforestation and use of firewood for cooking and agro processing enhance carbon emission and atmospheric temperature. PDS promotes the use of fuel efficient chulahs in houses and in community kitchens like schools. Fuel efficient dryers are promoted in agro processing centres like cardamom curing units where large quantity of firewood is used. With the support of UNDP, PDS promoted fuel efficient dryers in 100 schools in Idukki and Calicut districts.