Trust for Tourism Promotion of Cancun on February 3, 2007. This award Cancún ensured the ongoing support of the Department of Education and Knowledge Management of the WTO.
Most 'Cancúnenses' are from Yucatán and other Mexican states. A growing number are from the rest of the Americas and Europe. The municipal authorities have struggled to provide public services for the constant influx of people, as well as limiting squatters and irregular developments, which now occupy an estimated ten to fifteen percent of the mainland area on the fringes of the city.
In the 21st century, Cancún had largely avoided bloodshed associated with the trade of illegal drugs, but the city is regarded as a popular transshipment point for Colombian cocaine and reportedly known for retail drug sales to tourists and as a center of money laundering. The links with Cancún date from the 1990s and early 2000s, when the area was controlled by the Juárez and Gulf drug cartels. In recent years Los Zetas, a group that broke away from the Gulf Cartel, has taken control of many smuggling routes through the Yucatán, according to the U.S. Drug Enforcement Administration.
The 2010 United Nations Climate Change Conference was held in Cancún from November 29, 2010 to December 10, 2010