stylistic:style_transfer, linguistic:voice_change, structural:expansion, structural:summarization, information:classification
21st century

The city has hosted international events such as the 2002 United Nations Conference on Financing for Development with the participation of more than 50 heads of state and government, as well as other ministers and senior delegates from over 150 countries. The conference resulted in the adoption of the Monterrey Consensus, which has become a reference point for international development and cooperation. In 2004, the OAS Special Summit of the Americas was attended by almost all the presidents of the Americas.

In 2007, Monterrey held the Universal Forum of Cultures, with four million visitors. In 2008, Monterrey held the FINA World Junior Championships.

In 2010, Monterrey was hit by another damaging storm, Hurricane Alex which was considered worse than Hurricane Gilbert, with record-breaking rain bringing floods and causing severe economic damage. Damage estimates totaled US$1.885 billion and $16.9 billion MXN. Reconstruction and urban renewal ensued. Recently, the Nuevo León Development Plan 2030 was presented, along with some other metropolitan projects.

In August 2011 the city was the scene of a terror attack on a casino, in which more than 50 people were killed.

In summer 2022, the area experienced a severe drought, and city water service was cut off for several weeks to some areas, and in others limited to six hours a day. The city has three reservoirs. Cerro Prieto Reservoir dropped to 1% of its capacity and La Boca Reservoir dropped to 8%. El Cuchillo Reservoir remained at 30%, but limited aqueduct capacity led the government to announce in September 2022 a second aqueduct to connect it to Monterrey, with expected completion in July 2023. Heavy rains replenished reservoirs in early September. Controversy erupted over local bottling companies continuing to use well water to export beer and soft drinks during the crisis, though industry uses only 4% of water in Nuevo León, while residents use 25% and agriculture uses 71%. In late September, the governor of Nuevo León declared the crisis over, but asked residents to voluntarily use no more than 100 liters per day.