Sarnia vs Campo Grande

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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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Campo Grande (Brazilian Portuguese: [ˈkɐ̃pu ˈɡɾɐ̃dʒi], lit. '"Great Field"') is the capital and largest city of the Brazilian state of Mato Grosso do Sul in the Center-West region of the country. The city is nicknamed Cidade Morena ("Swarthy City" in Portuguese) because of the reddish-brown colour of the region's soil. It has a population of 906.092, according to a 2020 IBGE estimate, while its metropolitan area is home to 991,420 people (2010).The region where the city is located was in the past a waypoint for travellers who wanted to go from São Paulo or Minas Gerais to northern Mato Grosso by land. In the early 1900s a railway was completed connecting Campo Grande to Corumbá, on the Bolivian border, and to Bauru, São Paulo. Also in the beginning of the 20th century, the Western Brazilian Army Headquarters was established in Campo Grande, making it an important military center. With a population growth from 140,000 people in 1970 to 750,000 people in 2008, Campo Grande is the third largest urban center of the Center-West region, and the 23rd largest city in the country.

In 1977, the State of Mato Grosso was split into two, and Campo Grande became the capital of the new state of Mato Grosso do Sul, comprising the southern portion of the former state. By that time, Campo Grande had long surpassed the latter's capital city of Cuiabá in population, which is unusual in Brazil, where most capitals are also the states' largest cities. Today, the city has its own culture, which is a mixture of several ethnic groups, most notably immigrants from the Japanese prefecture of Okinawa, Middle Easterners, Armenians, Portuguese people, Germans, Italians, Spaniards, and Paraguayans, finally mixed with Asian and White Brazilians from the Brazilian Southern and Southeast regions, its native Amerindian peoples and Afro-Brazilians.

Source: Wikipedia