The agitation for equal opportunity sparked other forms of upheaval. Young people in particular rejected the stable patterns of middle-class life their parents had created in the decades after World War II. Some plunged into radical political activity; many more embraced new standards of dress and sexual behavior.  

The visible signs of the counterculture permeated American society in the late 1960s and early 1970s. Hair grew longer and beards became common. Blue jeans and tee shirts took the place of slacks, jackets and ties. The use of illegal drugs increased in an effort to free the mind from past constraints. Rock and roll grew, proliferated and transformed into many musical variations. The Beatles, the Rolling Stones and other British groups took the country by storm. "Hard rock" grew popular, and songs with a political or social commentary, such as those by singer-songwriter Bob Dylan, became common. The youth counterculture reached its apogee in August 1969 at Woodstock, a three-day music festival in rural New York State attended by almost half-a-million persons. The festival, mythologized in films and record albums, gave its name to the era -- The Woodstock Generation.  

The energy that fueled the civil rights movement and catalyzed the counterculture also stimulated an environmental movement in the mid-1960s. Many were aroused by the publication in 1962 of Rachel Carson's book Silent Spring, which pointed to the ravages of chemical pesticides, particularly DDT. Public concern about the environment continued to increase throughout the 1960s as many became aware of other pollutants surrounding them - automobile emissions, industrial wastes, oil spills -- that threatened their health and the beauty of their surroundings. On April 22, 1970, schools and communities across the United States celebrated Earth Day. "Teach-ins" educated Americans about the dangers of environmental pollution.  

But many resisted proposed measures to clean up the nation's air and water. Solutions would cost money to businesses and individuals, and force changes in the way people lived or worked. However, in 1970, Congress amended the Clean Air Act of 1967 to develop uniform national air-quality standards. It also passed the Water Quality Improvement Act, which made cleaning up off-shore oil spills the responsibility of the polluter. Then, in 1970, the Environmental Protection Agency was created as an independent federal agency to spearhead the effort to bring abuses under control.