The carbon stored in these fuels was released to the air as carbon dioxide - a gas that traps heat in the atmosphere.
(The carbon; stored; L:in these fuels) (The carbon stored in these fuels; was released; to the air as carbon dioxide) (a gas; traps; heat; in the atmosphere)
The carbon The carbon stored in these fuels a gas
stored was released traps
L:in these fuels
to the air as carbon dioxide
heat in the atmosphere