Page 18 - Advances In Productive, Safe, and Responsible Coal Mining
P. 18
Profitable coal mining means being productive, safe, and environmentally responsible 5
30
25
20
Total IR 15
10
5
0
0 5 10 15 20
Tons/ManHr
2
Fig. 1.3 OLS linear regression analysis of Cluster 1, R ¼0.066.
120
100
80
Total IR 60
40
20
0
0 50 100 150 200
Tons/ManHr
2
Fig. 1.4 OLS linear regression analysis of Clusters 2–4, R ¼0.275.
1.3 Importance of environmental responsibility
Statistically evaluating environmental success in coal mining is not as easy as com-
paring safety and productivity. There is plenty of research supporting successful mine
reclamation, but the targets of minimizing environmental impacts during mining and
