Thus, CO2 effects on climate may make full exploitation of coal resources undesirable.
Excavation of coal resources not only provides energy for the development of the national economy, but also causes damages to the land and ecology, such as occupation of land by coal wastes, land subsidence, landscape change, poisonous gas emission, and soil contamination.
Irresponsible mining methods have inevitably impacted on mine safety and seriously accelerated the depletion of coal resources, which will do enormous harm to the development of our national economy.
When considering the worldwide reserves of coal, the number of years that coal will be available may be more important than the total amount of coal resources.
In addition, the use of the coal-pillar mining results in a large amount of coal resources unexploited.
Dry beneficiation of fine coal is increasingly significant for the clean utilization of coal resources in drought regions.
Att present China's coal price can't reflect the true cost of coal resources and the value of resources isn't adequately compensated, for which absence of full cost of coal resources is mainly responsible.
"We have trillions of tons of coal resources in the world," Vic Svec, spokesman for Peabody Energy, told me.
I lived in the Powder River Basin, where there were a lot of coal resources and coal-mining activity.
Large scale underground mining of coal resources in China using longwall mining has resulted in ecological and environment problems, including surface subsidence that is considered serious due to competing interests of prime agricultural lands, food security, and regional economic development.
