This South American cactus moth is used to combat the spread of the prickly pear.
Content Index
The first nature reserve in Java, Indonesia, is established on the Krakatau volcanic island.
Thomas Jefferson commissioned Lewis and Clark’s expedition to search for a Northwest Passage to Asia. The expedition to the Pacific resulted in detailed environmental reports about the American West.
More than 10,000 people are killed during the earthquake in the Bihar region of Eastern India.
A series of tests called “Operation Crossroads” are the first nuclear tests conducted by the United States after the Second World War.
Soon after the species arrive, their populations increase to plague proportions.
Constant protesting leads to a recall of the Victoria government’s plans.
With the construction of the multipurpose Hirakud Dam across the River Mahanadi in India, multipupose river valley projects emerge in India.
The American forestry scientist and wildlife researcher Aldo Leopold publishes his book A Sand County Almanac.
One of the largest fire disasters in Australian history, the 1939 bushfires devastate large parts of Victoria.