Sarnia vs Donetsk

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Sarnia is a city in Southwestern Ontario, Canada, with a 2016 population of 71,594. It is the largest city on Lake Huron and in Lambton County. Sarnia is located on the eastern bank of the junction between the Upper and Lower Great Lakes where Lake Huron flows into the St. Clair River, which forms the Canada–United States border, directly across from Port Huron, Michigan. The site's natural harbour first attracted the French explorer La Salle. He named the site "The Rapids" on 23 August 1679, when he had horses and men pull his 45-ton barque Le Griffon north against the nearly four-knot current of the St. Clair River.This was the first time that a vessel other than a canoe or other oar-powered vessel had sailed into Lake Huron, and La Salle's voyage was germinal in the development of commercial shipping on the Great Lakes. Located in the natural harbour, the Sarnia port remains an important centre for lake freighters and oceangoing ships carrying cargoes of grain and petroleum products. The natural port and the salt caverns that exist in the surrounding areas, together with the oil discovered in nearby Oil Springs in 1858, led to the dramatic growth of the petroleum industry in this area.

Because Oil Springs was the first place in Canada and North America to drill commercially for oil, the knowledge that was acquired there resulted in oil drillers from Sarnia travelling the world teaching other enterprises and nations how to drill for oil.The complex of refining and chemical companies is called Chemical Valley and located south of downtown Sarnia. In 2011 the city had the highest level of particulates air pollution of any Canadian city, but it has since dropped to rank 30th in this hazard. About 60 percent of the particulate matter comes from industries and polluters in the neighbouring United States.Lake Huron is cooler than the air in summer and warmer than the air in winter; therefore, it moderates Sarnia's humid continental climate, making temperature extremes of hot and cold less evident. In the winter, Sarnia occasionally experiences lake-effect snow from Arctic air blowing across the warmer waters of Lake Huron and condensing to form snow squalls over land.

Source: Wikipedia

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Donetsk (UK: don-YETSK, US: də-N(Y)ETSK; Ukrainian: Донецьк [doˈnɛtsʲk] (listen); Russian: Донецк [dɐˈnʲetsk]), formerly known as Aleksandrovka, Hughesovka, Yuzovka, Stalin and Stalino (see also: cities' alternative names), is an industrial city in eastern Ukraine located on the Kalmius River in the disputed Donetsk region. While internationally recognized as in Ukraine, the city is under the de facto administration of the unrecognized Donetsk People's Republic, which claims it as its capital city. The population was estimated at 908,456 (2020 est.) in the city core, with over 2,000,000 in the metropolitan area (2011). According to the 2001 Ukrainian Census, Donetsk was the fifth-largest city in Ukraine.Administratively, Donetsk has been the centre of Donetsk Oblast, while historically, it is the unofficial capital and largest city of the larger economic and cultural Donets Basin (Donbass) region. Donetsk is adjacent to another major city, Makiivka, and along with other surrounding cities forms a major urban sprawl and conurbation in the region. Donetsk has been a major economic, industrial and scientific centre of Ukraine with a high concentration of heavy industries and a skilled workforce. The density of heavy industries (predominantly steel production, chemical industry, and coal mining) determined the city's challenging ecological situation. In 2012 a UN report ranked Donetsk among the world's fastest depopulating cities.The original settlement in the south of the European part of the Russian Empire was first mentioned as Aleksandrovka in 1779, during the reign of the Empress Catherine the Great.

In 1869 the Welsh businessman John Hughes founded a steel plant and several coal mines in the region, and the town was named Hughesovka or Yuzovka (Юзовка) in recognition of his role ("Yuz" being a Russian-language approximation of Hughes). During Soviet times, the city's steel industry expanded. In 1924 Yuzovka was renamed Stalin. In 1929 Stalin was renamed Stalino, and in 1932 the city became the centre of the Donetsk region. Renamed Donetsk (also Donetske, according to the Kharkiv orthography) in 1961, the city today remains a centre for coal mining and for the steel industry. Since April 2014 Donetsk and its surrounding areas have been one of the major sites of fighting in the ongoing Donbass War, as pro-Russian separatist forces battle against Ukrainian military forces for control of the city and surrounding areas. Throughout the war, the city of Donetsk has been administered by the pro-Russian separatist forces as the center of the Donetsk People's Republic (DPR), with outlying territories of the Donetsk region divided between the two sides. Donetsk International Airport became the epicenter of the war with almost a year-long battle leading to massive casualties among civilians and a total ruination of the northwestern neighborhoods of the city. As of July 2020, the DPR has full control of the city, with Ukrainian and DPR forces still engaging in combat outside of the city.

Source: Wikipedia