The important of karst denudation in term of climate changes lies on the ability of karst ecosystem inregulating atmospheric carbon. Karst denudation consumes CO2 either from atmosphere and soils. Thispaper is intended to describe the karst denudation related to CO2 sequestration and apply the concept tocalculate carbon gain through karst denudation process in Indonesian. Estimated from the carbonate rockoutcrops, the Indonesian karst region is approximately 140,000,000 km2. Previous work suggested thataverage denudation rate of Indonesian karst is 82.9 m3/year/km2 or equivalent to 218,856 kg/year/km2.Since 120 kg of atmospheric carbon is absorbed during the removal of one ton calcium carbonate removaland Indonesia karst area is 140.000 km2, Indonesian karst area up takes 3,677 Gg/year atmosphericcarbon. This amount is equivalent to 13.482 Gg CO2/year. This figure is merely from denudationprocesses, considering carbon dioxide sequestration by karst vegetation covers will inevitably gains muchhigher number. The role of karst denudation therefore needs more attention in carbon flux calculation anddeveloping climate change mitigation measures
Microbial Electrosynthesis: Converting Carbon Dioxide Directly to Butanol
and Other Organic Compounds
