Low prices threaten mass layoffs.
The Chinese government's higher limit for 2020 may reflect greater coal use.
Based on formulas that China uses for the energy content of 'standard coal,' the country may have burned over 3.8 billion tons of raw coal last year.
Worries over industrial capacity plan grow, with job losses feared in construction, steel, and coal.
Central bank spends to support sagging yuan, but experts say capital flight is not a complete explanation for the RMB's woes.
Dimming prospects for gas defy push for cleaner fuel to meet one of the government's main environmental goals.