Beijing, May 22 (EFE).- Several provinces in China are on the highest red alert of a four-tier color-coded warning system due to extreme weather conditions. Heavy rainfall and a heat wave will affect several regions of the country between Monday and Tuesday, the National Meteorological Center announced Monday. A torrential rain warning has been issued …
Coal is currently the key energy source in China, and this condition will not change for the foreseeable future. A majority of the coal mines are underground, involving more mining risks than open-pit mining methods. This article is based on Cheng, P. et al's journal paper published in Shock and Vib