A system for processing greenhouse gases including a collection subsystemconfigured to collect a gaseous mixture including carbon dioxide and methane,a combustionsubsystem configured to combust the methane in the gaseous mixture and outputa gaseouscombustion effluent, wherein the combustion subsystem generates electricalenergy, waterand additional quantities of carbon dioxide, and a separation subsystemconfigured toseparate the carbon dioxide from the gaseous combustion effluent.