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In winter, mean temperatures range from 1 to 28 °C (34 to 82 °F), which decreases from south to north, and/or as one climbs up its mountains, and vice versa. [1]: 30 In the coolest month, mean temperatures range from 11 to 17 °C (52 to 63 °F) in the northern highlands to 21 to 25 °C (70 to 77 °F) in the southern highlands.
Multiregional evolution holds that the human species first arose around two million years ago and subsequent human evolution has been within a single, continuous human species. This species encompasses all archaic human forms such as Homo erectus , Denisovans , and Neanderthals as well as modern forms, and evolved worldwide to the diverse ...
The main contributor to the country's emissions is fossil fuel combustion, which accounted for about 60% of greenhouse gas emissions in 2014. [3] As of 2018, the electricity sector accounted for 48% of Vietnam's CO 2 emissions from fossil fuel combustion, industry for 28%, transport 16%, the residential sector 4%, the commercial sector 3%, and agriculture 1%. [3]
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Climate change has been linked to human migration from as early as the end of the Pleistocene to the early twenty-first century. [ 13 ] [ 14 ] The effect of climate on available resources and living conditions such as food, water, and temperature drove the movement of populations and determined the ability for groups to begin a system of ...
The curve shown in graphs of these reconstructions is widely known as the hockey stick graph because of the sharp increase in temperatures during the last century. As of 2010 [update] this broad pattern was supported by more than two dozen reconstructions , using various statistical methods and combinations of proxy records, with variations in ...
Vietnamese and Chinese officials are preparing for a possible visit from President Xi Jinping to Hanoi at the end of October or early November, on the heels of U.S. President Joe Biden's trip in ...
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period.