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mining disaster

Coal mining has historically been an extremely dangerous.
legislation on safety at work everywhere was very lacking in long-mining camp

It was in the coal mines that occurred the most serious mining accidents in the United States of America ( Monongah, West Virginia, December 6, 1907, 362 victims) and Europe ( Disaster Marcinelle August 8, 1956, 262 deaths, Courrières , France, March 10, 1907, 1099 deaths).
The risks of open-cast mines are mainly in the slope failure, underground roof collapses of the mine and the explosion of gas. Most of these risks can be greatly reduced in modern mines, and many fatalities are now rare in the developed world.
Improvements in mining methods (eg extraction along the wall), gas drainage, safety lamps and ventilation have reduced many of these risks. In less developed countries, however, thousands still die in coal mines.

The particularly China is the world leader in deaths linked to the extraction of coal, with official estimates of 6000 deaths in 2004. Estimates do not officials put the figures much higher, about 20,000 deaths. China is also the world leader in coal production and consumption.
chronic lung diseases such as pneumoconiosis are common to miners, resulting in reduced life expectancy for the employed.
Only in the last months of 2010, were published reports of several incidents in different mines. On October 16, 2010 disaster in the province of Henan in China, caused by an explosion of gas and coal dust explosion killed 37 miners. Similar scenario in Chile, where 34 miners were trapped in a small mine in northern Chile, 450 km from Santiago, miraculously saved after two months and ten days of agony. The same has not been possible to notify the miners of the Pike River Mine in New Zealand, where in November 2010 were killed 29 miners.

The new challenges aimed at a new development related to sustainable energy from renewable sources, wants to also aim for a quality job, leaving the past disasters caused by fossil fuels, mainly ecological disasters caused by oil and coal .

Coal mining frequently results in significantly different environmental impacts. The open-cast mining typically destroys much of the environmental value into the ground through which it passes. All forms of mining is likely to generate areas where coal is stacked and where the coal has a sulfuric acid content significant, as the heaps of coal that generate acid drainage is particularly rich in metal when exposed to normal rain squalls . These liquids can cause serious environmental damage to water courses receptors. In addition, the piles of waste are subject to landslides, as the disaster at Aberfan that killed 144 people in 1966.

(from http://www.wikipedia.org/ )