Sri Lanka, May 22 -- In the wake of the Sri Lankan government preparing for offshore petroleum exploration, a leading Norwegian expert in the field, said that it is a risky investment when the world is moving towards renewable energy sources more and more.

In an interview with Daily Mirror, he said Prof. Peter Mosby Haugan who is the Policy Director of Institute of Marine Research and University of Bergen in Norway, struck a note of caution against investment in the upstream petroleum development. He arrived in Sri Lanka to attend an international seminar organized by Pathfinder Foundation.

"It is a risky investment. It takes time. That also takes time to develop. You invest in infrastructure which only requires you to use it for a lon...