Description: After global warming became a concern in the mid-1950s, researchers proposed measuring deep ocean temperatures to reveal any significant trends in core ocean warming. Acoustic thermometry can detect changes in ocean temperature by receiving low-frequency sounds transmitted across an ocean basin because the speed of sound is proportional to water temperature. Acoustic Thermometry of Ocean Climate, or ATOC, is an international program involving 11 institutions in seven nations. It is designed as a 30-month "proof-of-concept" project to provide data on possible global climate change, with funding provided by the U.S. Department of Defense. A debate has arisen over ATOC's impact on marine mammals versus the benefits of better global warming information derived from ATOC. This report dicusses the ATOC program and related concerns.

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Description: From its inception in 1972, one of the goals of the Marine Mammal Protection Act (MMPA) was to reduce the incidental mortality of dolphins in the ETP tuna fishery. Regulations promulgated under MMPA authority set standards for tuna seining and motivated technological improvements that reduced dolphin mortalities in this fishery -- by 1977, annual dolphin mortality by U.S. tuna seiners had declined to about 25,450 animals. Despite the extensive mortalities, no ETP dolphin population has been listed as endangered or threatened under the U.S. Endangered Species Act. However, two ETP dolphin stocks were listed as depleted under the MMPA.

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Description: On July 29, 1994, the United States signed the Agreement Relating to the Implementation of Part XI of the United Nations Convention on the Law of the Sea of 10 December 1982. This agreement substantially reforms the seabed mining provisions of the 1982 Convention, which the United States found objectionable. In signing the Agreement, President Clinton accepted provisional application of it which enables the United States to participate in the International Seabed Authority (ISA) and its organs and bodies. On November 16, 1994, the U.N. Law of the Sea Convention entered into force without accession by the United States.The treaty document was referred to the Senate Committee on Foreign Relations late in the 103d Congress and awaits committee action in the 104th Congress.