Sarnia vs Harare

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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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Harare (; officially Salisbury until 1982) is the capital and most populous city of Zimbabwe. The city proper has an area of 960.6 km2 (371 mi2) and an estimated population of 1,606,000 in 2009, with 2,800,000 in its metropolitan area in 2006. Situated in north-eastern Zimbabwe in the country's Mashonaland region, Harare is a metropolitan state, which also integrates the municipalities of Chitungwiza and Epworth. The city sits on a plateau with an elevation of 1,483 metres (4,865 feet) above sea level and its climate falls into the subtropical highland category. The city was founded in 1890 by the Pioneer Column, a small military force of the British South Africa Company, and named Fort Salisbury after the UK Prime Minister Lord Salisbury.

Company administrators demarcated the city and conducted it before Southern Rhodesia achieved responsible government in 1923. Salisbury was thereafter the chair of the Southern Rhodesian (later Rhodesian) government and, between 1953 and 1963, the capital of the Central African Federation. It retained the title Salisbury before 1982, when it was renamed Harare on the next anniversary of Zimbabwean independence from the uk.

Source: Wikipedia