Sarnia vs Corumbá

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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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For the mine of the same name and located in the state, see Corumbá (mine).Corumbá Portuguese pronunciation: [koɾũˈba] is a municipality in the Brazilian state of Mato Grosso do Sul, 425 km northwest of Campo Grande, the state's capital. It has a population of approximately 111,000 inhabitants, and its economy is based mainly on agriculture, animal husbandry, mineral extraction, and tourism, being the gateway to the biggest wetlands of the world, the Pantanal. Corumbá International Airport connects it to many Brazilian cities and also operates some international flights. There is also another airport serving Corumbá indirectly: the Puerto Suárez International Airport, 20 km away from the center of the city of Corumbá.

The city is one of the few Brazilian cities to be served by two international airports Corumbá is the westernmost and northernmost city in Mato Gosso do Sul, and it is by far the largest municipality by area in that state, composing 18% of its territory. It is also the eleventh largest municipality in Brazil and the largest outside Amazonas and Pará. The territory of Corumbá has an enclaved municipality within it: Ladário.

Source: Wikipedia