1968 in the environment

thumb|300px|Earthrise, taken on December 24, 1968, by Apollo 8 astronaut [[William Anders]] Earthrise is a photograph of Earth that was taken from lunar orbit by astronaut William Anders on December 24, 1968, during the Apollo 8 mission. Nature photographer Galen Rowell described it as "the most influential environmental photograph ever taken".

essay by Paul R. Ehrlich

conservation effort of certain rivers in the United States and its territories

Series of 1960s US nuclear tests

continent-wide agreement signed in 1968 in Algiers