At the International Palm Oil Life Cycle Assessment Conference held in Kuala Lumpur, Malaysia during 18 ~ 2- October 2009, Prof. Lee Keat Teong of the University of Malaysia made it clear that biodiesel oil developed from palm oil would be the most symbiotic to global environment.

His comparative study made on palm oil against jatropha oil and rapeseed oil concluded that biodiesel made from palm oil had the highest ratio of [obtained energy/invested energy], using the least land area for cultivation, and in addition, palm trees had relatively large reserve of CO2.

On the other hand, J.H. Schmidt and his associates presented the result of their calculation on the average CO2 emission due to palm cultivation in Malaysia, which yielded a value of 3.18 ton-CO2e/ton of palm oil. They also reported that cultivation of palm trees on peat-land triggers a large volume of CO2 emission from the peat. And they also mentioned that stopping the palm cultivation on peat land would inhibit CO2 emission from the soil.

Table Comparison of LCA of Different Biofuels

Particulars	Palm Oil	Jatropha Oil	Rapeseed Oil
Required Land Area to obtain Unit Amount of Biofuel（ha/t-biodiesel）	0.28	0.61	1.55
Energy Ratio (obtained energy/invested energy)	2.27	1.92	1.73
Reserve of CO2（kg-CO2/t-biodiesel）	−7,000	−360	Unavailable

Fig. Required Land Area to obtain Unit Amount of Biofuel
（ha/t-biodiesel）

Fig. Energy Ratio (obtained energy/invested energy)

Sources:
http://www.mpoc.org.my/publication_file/LCA%20of%20Biofuel%20Oil%20Crops.pdf
http://www.mpoc.org.my/publication_file/Life%20Cycle%20Assessment%20of%20Malaysian%20Palm%20Oil.pdf