OREANDA-NEWS. February 16, 2015. Since the 1970s, the renewable energy sector has usually trembled each time oil goes through the "bust" phase of the commodity cycle.

When crude was dear, users became interested in wind, solar and hydro.

But when oil became cheap, they gorged on it once more, turning their backs on novel, cleaner but costlier alternatives.

Today, oil is again in the doldrums. It plunged by 60 percent in price between June 2014 and January, falling to just over \\$40 a barrel, before pulling back to around \\$60 today.

So does this herald another crisis for green energy, further complicating the fight against carbon pollution?

Not necessarily, say observers.

Lower oil prices may indeed lead to more emissions in the transport sector, where electric vehicles have struggled to penetrate even at times of high pump prices, they say.

Transport accounts for around 14 percent of the world's annually tally of greenhouse-gas emissions.

As the cost of petrol (gasoline) falls, "people drive more, and tend to buy thirstier cars," said Pascal Canfin, a climate expert at the World Resources Institute (WRI) think-tank.