Approximately 12,000 people die as a result of the worst air pollution event in the history of the United Kingdom.
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The German state regulates conservation for the first time 1935.
Egon Glesinger publishes his study on the global importance of wood as a raw material.
The International Union for Conservation of Nature and Natural Resources (IUCN) is founded. Today, it is considered the world’s largest conservation organization.
Pakistan’s Kalabagh Dam Project is constructed and becomes highly contested as it develops from an irrigation project into a major effort to generate hydroelectric power.
The first international conference on global biosphere protection by UNESCO takes place in Paris in 1968.
The process caused environmental destruction in large areas of Tasmania.
The passage of the first forest regulations in India under British rule leads to the establishment of the Imperial Forest Service.
The Erie Canal was the first transportation system between the eastern seaboard and the western interior of the United States that did not require portage.
German physicist Albert Einstein explains the photoelectric effect.