August 16, 2001 – The Center appealed the state of New Mexico Mining and Minerals Division's approval of Salt River Project's permit renewal application for the Fence Lake Mine in western New Mexico. Salt River Project planned to mine more than 80 million tons of coal on 18,000 acres, shipping the coal by railroad 44 miles to its Coronado Generating Plant near St. Johns, Arizona.
August 4, 2003 – Salt River Project announced the abandonment of plans to develop the proposed Fence Lake coal strip mine in western New Mexico.
July 31, 2006 – The Center, along with residents of Kentucky, filed suit against the Environmental Protection Agency over its failure to address dangerous deficiencies in the operating permit for the Tennessee Valley Authority’s Paradise coal-fired power plant in western Kentucky.
March  4, 2008 � The Center, the Kentucky Environmental Foundation and the Sierra  Club filed suit against the U.S. Department of Agriculture�s Rural Utilities  Service program to force the agency to link its analysis of the impact of East  Kentucky Power Cooperative�s proposed power plant with its analysis of the  company�s power transmission lines. Unless the power plant and power lines were  assessed together, the lawsuit declared, Kentuckians wouldn�t receive a full  picture of their dirty impacts.
          
September  2, 2008 � The Center appealed the Environmental Protection Agency�s July 31, 2008 approval of a Clean Air Act  permit to construct and operate the Desert Rock Energy Project. The EPA  approved the permit for the proposed 1,500-megawatt coal-fired power plant near  Farmington, New Mexico, without first considering its effect on threatened and  endangered species, as required by the Endangered Species Act.
          
November  20, 2008 � The Center, the Sierra Club and two Kentucky  residents sued the EPA over its failure to rule on a petition challenging the  Tennessee Valley Authority�s Paradise  coal-fired power plant operating permit. The petition sought to overturn the  plant�s permit due to deficiencies that would contribute to global warming and  human health risks.
          
January  20, 2009 � After the Office of Surface Mining hurriedly issued a  �Life-of-Mine� permit allowing Peabody Energy to reopen northeastern Arizona�s controversial Black Mesa coal mine, the Center,  Energy Minerals  Law Center and Natural Resources  Defense Council submitted an appeal.
          
January  21, 2009 � The Center and nine other groups, represented by Earthjustice,  filed an appeal with the Board of Land Appeals urging it to reject the Bureau  of Land Management�s approval of the White Pine Energy Station near Ely,  Nevada.
          
February  9, 2009 � Citing growing environmental and economic concerns, NV Energy  announced it was abandoning its original plans to construct the Ely Energy  Center. It continued plans for transmission-line construction in the same area.
          
April  27, 2009 � In the face of appeals by the Center and other groups, the EPA  asked its Environmental Appeals Board to voluntarily reject its issuance of a  permit approving the Desert Rock coal-fired power plant in northwest New  Mexico.
          
May  13, 2009 � The Center filed a notice  of intent to sue the U.S. Bureau of Land Management and the U.S. Fish and  Wildlife Service over the Ely Resource Management Plan, a government plan for  managing approximately 11.5 million acres of public lands in east-central  Nevada. The plan allowed for the sale of public lands for construction of three  new coal-fired power plants: the White Pine Energy Station, the Toquop Energy  Project and the Ely   Energy Center.
          
July  7, 2009 � The Center, other groups and a western Colorado county filed a legal  challenge against the Bush-era Westwide Energy Corridor, a plan that  designated energy corridors in 11 western states to promote coal-fired and  other fossil fuel-fired power plants. 
          
December  3, 2009 � In response to an appeal by the Center, along with a diverse  coalition of tribal and environmental groups, the Environmental Protection  Agency withdrew a controversial water permit for Arizona�s massive Black Mesa Coal Complex.
          
January  8, 2010 � After an appeal by the Center and allies, a judge threw out a  permit to expand the Black Mesa Coal Complex.
          
June  16, 2010 � A coalition of environmental groups, including the Center,  called on the U.S. Environmental Protection Agency to establish, for the first  time ever, limits on air pollution from coal mines throughout the United  States.
          
January 31, 2011 � The Center for Biological Diversity, Din� Citizens Against Ruining Our Environment and San Juan Citizens Alliance sued the Department of the Interior�s Office of Surface Mining for failing to protect the San Juan River ecosystem before allowing additional coal development in northwest New Mexico.
November 2011 � A coalition of conservation groups, including the Center, filed suit against the Environmental Protection Agency over its failure to protect public health and the environment from air pollution from coal mines in the United States.
May 15, 2012�� After decades of coal pollution from the 2040-megawatt Four Corners Power Plant and BHP Billiton�s 13,000-acre Navajo Coal Mine that supplies it, Navajo and conservation groups filed suit against the federal government for improperly rubber-stamping a proposal to expand strip-mining without full consideration of the damage and risks to health and the environment.�