| 英文摘要: | The price of oil has tumbled in the past few months. But is it necessarily bad news for the renewables sector? Anna Petherick investigates. As climate negotiators boarded planes to their biggest meeting of the year in Lima, Peru, the oil price shifted from a downturn into a nosedive. It plunged on 27 November, after Saudi Arabia surprised the market by announcing an intention to maintain production levels. The extent of the drop was substantial, and then it kept on wiggling lower (Fig. 1). Oil still traded regularly at more than $100 per barrel until September; by the New Year, it was about $50 per barrel, leading to the second-largest annual price decrease since trading in oil futures began in the 1980s1. What lies behind this crash and what does it mean for the burning of oil, relative to cleaner means of heating houses and transporting goods?
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