What are the top contributors to global carbon dioxide emissions?
If you mean net contributors (emissions versus green surface GHG reduction) they are 1.- USA and 2.- EU If you mean emissions and dont take into account green surface 1.- USA and 2.- adding CO2 and CH4, China, CH4 emissions are high in rice fields About what: 1.- Electricity (wind, solar and biomass source dont count, of course) 2.- Transportation.