The agency will be imposing emissions caps on new and existing power plants across the country, which significantly hurts the coal industry. (dailycaller.com)
To adjust emissions caps in the future, the allowances would expire periodically, perhaps as often as once a year. (scientificamerican.com)
Prices and trading volumes reflect many factors, including differences in the rigor of emission caps, enforcement standards, project monitoring and auditing. (scientificamerican.com)