MINING

WHERE/HOW IS MINING USED IN MINNESOTA

• In arrow head of Minnesota along lake superior
• Clay is used in making bricks porcelain tiles and medicines
• Silica Sand is used in making glass
• Granite and limestone are used in building and houses

LAWS AND REGULATIONS

• Clean Air Act - sets air quality standards- mining can only pollute the air so much
• Toxic Substance Act - requires regulation of chemicals that present risk to health or environment-miners cant dump harmful chemicals in the envirnment

IMPACTS ON ENVIRONMENT

• Acid mine drainage dumps into lakes and rivers raising water pH killing and hurting fish

CHANGE DUE TO MINING

• They have to deforest over large pit mines
• Underground mines can cause sink holes

RECENT NEWS

• PolyMet Mine
• Their are people that want to keep it closed and people that want to keep it open
• PolyMet needs more than 20 permits to reopen
• Has not opened yet

BIBLIOGRAPHY

• "Envirnment." N.p., n.d. Web. 24 Apr. 2016. . Kraker, Dan. "PolyMet Supporters, Critics Expected at Permit Info Meeting." N.p., n.d. Web. 24 Apr. 2016. . "Mining in Minnesota." N.p., n.d. Web. 24 Apr. 2016. .