First flight of the Falcon 9 will take place in the next few months. This hydrocarbon fueled rocket introduced by the Space Exploration Technologies Corporation (informally, Space-X) is expected to be able to place about 5 metric tons into LEO. The propellants for Falcon 9's nine engines are conventional kerosene (RP-1) and liquid oxygen; important emissions include water vapor, carbon dioxide, and soot. A heavy lift version of Falcon 9 is planned. Kerosene fueled rocket engines emit about 3 times more carbon dioxide (per unit mass delivered to orbit) than standard solid rocket motors.
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