A State by State Licensure Guide. SocialWorkLicensure.org provides state specific social work licensure and certification requirements including education requirements, exam requirements, reciprocity licensure information, and professional organization contacts.
Coal mining generates significant adverse environmental impacts. Historically, coal mining has been a very dangerous activity and the list of historical coal mining disasters is a long one. Underground mining hazards include suffocation, gas poisoning, roof collapse and gas explosions.
Background - 15 April, 2010. From mining to combustion coal is the most polluting of all fossil fuels. Burning coal is the largest single source of climate changing carbon dioxide (CO2) emissions in the world. Coal burning is responsible for one-third of all our carbon dioxide pollution (CO2). It is the most polluting way to generate electricity accounting for over 70 percent of the CO2 emissions from the power sector.