Sarnia vs General Roca

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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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General Roca is a city in the northeast of the Argentine province of Río Negro, northern Patagonia. UN/LOCODE is ARGNR. The city was founded on September 1, 1879, by Colonel Lorenzo Vintter —by order of War Minister Julio A. Roca— during the Conquest of the Desert. The place of the first settlement was known by native mapuche people as Fiske Menuco, which means "deep water". It was destroyed in 1899 by a flooding of the Río Negro, and had to be rebuilt 5 kilometres (3.1 mi) northwest in higher lands. Its present population is approximately 86,000 (according to 2010 census [INDEC]), making it the second most populated city in the province after Bariloche, and the second most important in the Alto Valle after Neuquén. The main activity around the city is the intensive agriculture under irrigation, which made possible an intense agro-industrial activity. The main crops are pears and apples. The city hosts the annual National Festival of the Apple, which is held in early February. General Roca, named after Julio A. Roca, is located 1,200 kilometres (750 mi) from Buenos Aires, 505 kilometres (314 mi) from Bahía Blanca, 513 kilometres (319 mi) from Viedma and 400 kilometres (250 mi) from the deepwater port of San Antonio Este.

The city is connected to the east by Argentine National Route 22, and is also crossed by provincial routes 6 and 65, which connect it to other cities in the Alto Valle, with the south of the province, and with the La Pampa Province. Through the centre of the city drives the wide rail train lane that joins Zapala with Bahía Blanca and Buenos Aires. The local airport connects General Roca with other points of the country, mainly with Buenos Aires and Mendoza. Nonetheless, due to lack of maintenance, the airport has not been used since the year 2000. Together with Villa Regina, Allen, Cinco Saltos, Cipolletti, Neuquén and many other smaller towns, they constitute the lineal urbanization of the Alto Valle of the Negro River. The city is surrounded by a patchwork of irrigated land totaling 100,000 hectares (250,000 acres). Besides apple and pear orchards, there are vineyards and other establishments producing peaches and a variety of other fruits and vegetables. Within the industrial sector, the fruit-refrigerating storehouses, fruit and vegetable packaging, and other agriculture-related industries stand out.

Source: Wikipedia