Tritium is a radioactive isotope of hydrogen used to enhance the explosive yield of every thermonuclear weapon. Tritium has a radioactive decay rate of 5.5% per year and has not been produced in this country for weapons purposes since 1988.
A rationale for federal financial support to Amtrak has been that rail service conserves energy, compared to other forms of intercity passenger transportation. The numbers presented in this report suggest that the rationale might not be valid with regard to some alternative modes of transportation, and the report discusses some public policy implications that could follow from that conclusion.
Wetland protection is controversial because the federal government regulates activities on private lands and because the natural values at some of these regulated sites are being debated. This controversy pits property owners and development interests against environmentalists and others who seek to protect the remaining wetlands. Mitigation banking, which allows a person to degrade a wetland at one site if a wetland at another site is improved, has been identified as a potential answer to this shrill and seemingly intractable debate.
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