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Climate changes of 535-536 (535–536 AD), sudden cooling and failure of harvests, perhaps caused by volcanic dust; 900–1300 Medieval Warm Period, wet in Europe, arid in North America, may have depopulated the Great Plains of North America, associated with the Medieval renaissances in Europe Great Famine of 1315–1317 in Europe
US president Barack Obama briefs several European leaders during the 2009 United Nations Climate Change Conference. US Secretary of State John Kerry speaking at the 2015 United Nations Climate Change Conference. President Donald Trump announcing U.S. withdrawal from the Paris Agreement in 2017.
The reasons for these species' extinction, possibly due to climate change or human hunting, remain debated. The absence of large domesticable animals in North America affected the development of societies, limiting hunting and herding and later giving European colonizers a biological edge.
Counting the Irish diaspora and the forty-eighters, millions of Europeans emigrate to North America, South America, and Australia. 1859 John Tyndall discovers that some gases block infrared radiation. He suggests that changes in the concentration of these gases could bring climate change. [20] 1883 Eruption of Krakatoa in Indonesia. The sound ...
From ancient times, people suspected that the climate of a region could change over the course of centuries. For example, Theophrastus, a pupil of Ancient Greek philosopher Aristotle in the 4th century BC, told how the draining of marshes had made a particular locality more susceptible to freezing, and speculated that lands became warmer when the clearing of forests exposed them to sunlight.
Climate change in Guatemala; Climate change in Honduras; Climate change in Mexico; Climate change in Nicaragua; Climate change in the United States; For details on climate change in South America, please see: Climate change in Argentina; Climate change in Brazil; Climate of Chile; Climate change in Colombia; Climate change in Ecuador; Climate ...