Fracking is shorthand for hydraulic fracturing, a type of drilling that has been used commercially for 65 years.
The climate of Shanghai in december is bad. The weather in december in Shanghai is relatively dry (with 67mm of rainfall over 7 days). The weather's not getting better compared to the previous month since in november there is an average of 59mm of rainfall over 6 days. The climate is quite cold here the month of december, but it is endurable when dressing cosy.
Check the weather in Shanghai in January before you book your next holiday in China. Long-term weather averages give the best indication of the weather in January 2017 and include figures for temperature, sunshine and rainfall for Shanghai, China plus [sunrise & sunset times].