Original: While Californian voters did not pass a 1972 proposal placing a 5-year moratorium on nuclear plant construction, anti-nuclear groups campaigned to stop construction of several proposed plants in the seventies, especially those located on the coast and near fault lines.
Simplified: While Californian voters failed to pass a 1972 proposal placing a 5-year moratorium on nuclear plant construction, anti-nuclear groups campaigned to stop construction of several proposed plants in the seventies, especially those located on the coast and near fault lines.