Bloomberg A researcher at China’s biggest oil company said the country’s drillers should copy the hedging strategies of Mexico and shale firms in the US, which use financial derivatives to protect against falling oil prices. Most of China’s oil production is unhedged, leaving the stability of the sector exposed to global market fluctuations, according to Dai Jiaquan, director of the …

Bloomberg Japan revised lower its latest greenhouse gas emissions figures, which it had already reported as the least since records began in 1990. Emissions fell 3.9% from a year earlier, data on Tuesday from the environment ministry showed, a bigger drop than the 3.6% estimate in November. The figures, for the year through March 2019, are the latest available. The …

Bloomberg Springtime is a difficult moment to puzzle out what the ongoing economic shutdown means for global warming. Carbon-dioxide levels always drop throughout the spring and summer in the Northern Hemisphere, as hungry plants absorb the primary greenhouse gas. This seasonal effect is occurring as pandemic lockdowns have stopped billions of people from driving and working, slashing fossil-fuel use and …