1. First evidence of ozone depletion.

  2. Since a pulp and paper combine came into operation on the south bank, the Epischura, 98% of the zooplankton mass, and one of the first links in the food chain, have died out. This has seriously upset the ecological balance of the lake.

  3. The World Food Programme (WFP) of the United Nations, adopted in 1961, provides humanitarian aid in emergencies, but also supports long-term economic development to ensure independent food supplies.

  4. Marine biologist Rachel Carson publishes Silent Spring, calling attention to the threat of toxic chemicals to people and the environment.

  5. In June 1961, electricity generated by nuclear power is fed into the public grid for the first time in the Federal Republic of Germany from the Kahl Nuclear Power Plant.