Challenges remain to accessing US federal helium reserves
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چکیده
منابع مشابه
Challenges from State-Federal Interactions in US Climate Change Policy
Throughout most of US history, state and local governments have had the primary responsibility for environmental protection (Richard L. Revesz 2001). However, since the passage of the National Environmental Policy Act in 1969, the federal role has increased significantly. But while federal environmental laws establish various standards, they typically leave states free to adopt more stringent r...
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ژورنال
عنوان ژورنال: MRS Bulletin
سال: 2014
ISSN: 0883-7694,1938-1425
DOI: 10.1557/mrs.2014.207