Mexicali

Mexicali is the capital city of the Mexican state of Baja California.

It sits directly on the border between Mexico and the United States. The city abuts the American city of Calexico, California. Together, these two cities form a large metropolitan area. This combined area is home to approximately 1,000,000 people. Mexicali serves as a vital economic and cultural hub for the border region known as The Californias.

The geography of the region is defined by a hot, arid climate. This is known as a BWh climate under the Köppen classification system. This means the area experiences desert weather throughout the entire year. Summers are extremely long and very hot. In July, the mean temperature is 32 degrees Celsius, with an average high of 41 degrees Celsius. On July 28, 1995, the area recorded a temperature of 50 degrees Celsius.

Most precipitation occurs during the winter months of December, January, and February. However, heavy rain can sometimes arrive from tropical storms or hurricanes. For example, Hurricane Kathleen dropped several inches of rain in 1976. Even in this desert, snow has been recorded, such as on December 12, 1932.

The history of the area involves many different groups of people. Long ago, Spanish explorers crossed the Sonoran Desert via the "Camino del Diablo," or Devil's Road. This led to the arrival of Catholic missionaries. The indigenous Cocopah people have lived in the region for a long time. Today, they still inhabit a small, government-protected area near the Colorado River delta. In the mid-19th century, a geologist discovered that thick river sediment deposits made the area perfect for farming. These sediments accumulated in a shallow basin below the Sierra de Cucapá.

Large-scale development began around the turn of the 20th century. In 1900, the California Development Company received permission to cut a canal through the Arroyo Alamo. This canal linked the dry basin to the Colorado River. To attract farmers, developers named the area the "Imperial Valley." By 1904, 405 square kilometers of the valley were irrigated. Around this time, thousands of Chinese laborers were brought in to build the irrigation system. This created a strong Chinese cultural influence in the area. The name "Mexicali" is a portmanteau of "Mexico" and "California."

Agriculture was the primary driver of the local economy for many years. The Mexicali Valley is one of the largest irrigation districts in Mexico. It is a highly fertile region where farmers grow over fifty different types of crops.

While wheat and cotton were historically important, horticulture is now a major success. The region is a primary global exporter of asparagus, broccoli, carrots, and green onions. Cotton production was especially high in the 1960s, reaching over half a million parcels per year. This helped develop a local textile industry.

In more recent decades, the economy has shifted toward manufacturing. This is driven by the presence of maquiladoras. A maquiladora is a duty-free assembly plant. In these factories, parts are imported from the United States, assembled, and then returned to the U.S. as finished products.

Mexicali is a major center for the automotive, aerospace, and telecommunications industries. It also produces health items and metallurgical products. A 1988 study identified 100 factories in the city. These included 25 auto parts manufacturers and 27 textile plants. Many of these plants are run by U.S., Mexican, South Korean, or Japanese companies.

Despite its success, the city faces several environmental challenges. Mexicali has been listed as having some of the most polluted air among large Mexican cities. This is partly due to a lack of wind and a lack of pavement, which creates dust. The city also struggles with large amounts of waste, including electronic waste and used tires.

Additionally, the nearby Cerro Prieto geothermal power station produces pollutants like mercury. In 2014, the government began creating a zone of exclusion around the plant due to contamination. Managing these environmental issues remains a complex task for the region's growing population.