Sarnia vs Culiacán

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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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Culiacán, officially Culiacán Rosales, is a city in northwestern Mexico. It is the capital of and the largest city in Sinaloa and in the Culiacán Municipality. It is the most populous and extensive city in Sinaloa and was founded on September 29, 1531 by the Spanish conquerors Lázaro de Cebreros and Nuño Beltrán de Guzmán under the name of Villa de San Miguel referring to its patron saint San Miguel Arcángel. The city of Culiacán is well known for its culture, luxuries and celebrations. Its iconic sites include its historic center, Las Riberas park, the flag or better known as dancing fountains and religious temples such as its Basilica Cathedral, the Sanctuary and the Lomita.

The modern Tres Ríos district is known for its buildings, squares, hotels, parks, restaurants, schools, etc. The city is located in a valley on the slopes of the Sierra Madre Occidental at the confluence of the Tamazula and Humaya rivers, where the two join to form the Culiacán River, 55 m above sea level. The first outline of the city was made by the architect Luis F. Molina.

Source: Wikipedia