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Nuclear testing involves detonating nuclear weapons to study their effects. The first test, codenamed Trinity, occurred in New Mexico in 1945. These tests, conducted both above ground and underground, release immense energy, producing blast, heat, and radiation.12

Atmospheric testing led to widespread public concern over radioactive fallout, which can contaminate the environment and pose health risks. This concern contributed to the signing of the Nuclear Test-Ban Treaty in 1963, which prohibited tests in the atmosphere, outer space, and underwater, though underground testing continued. The Nevada Test Site was a primary location for U.S. nuclear explosive tests between 1951 and 1992. Efforts to ban all nuclear testing led to the proposed Comprehensive Nuclear-Test-Ban Treaty, though its ratification has faced challenges.3245

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