India's big plans for cleaner aviation fuel face a string of hurdles

in Dehradun, scientists are working with partners including Boeing Co. to get global approvals for their biofuel, which is made from waste cooking oil and the seeds of plants

At the foothills of the Himalayas, in the city of Dehradun, India’s government is working on a jet fuel it hopes can help clean up the smog hanging over its big cities. 
 

There -- on a sprawling 300 acre tea estate where leopards and deer can be spotted -- scientists are working with partners including Boeing Co. to get global approvals for their biofuel, which is made from waste cooking oil and the seeds of plants like pongamia and jatropha that aren’t consumed. 

The project run by the Indian Institute of Petroleum, a laboratory of the Council of Scientific