 On July 5, 2007, Kâ's ministerial portfolio was changed from Maritime Economy and International Maritime Transport to the Environment, the Protection of Nature, Retention Basins and Artificial Lakes; he retained the rank of Minister of State.Kâ, speaking in the National Assembly on August 8, 2007, urged the creation of an African coalition to work against the effects of rising sea levels caused by global warming.Wade was defeated by opposition candidate Macky Sall in the February–March 2012 presidential election, and Kâ lost his government post when Sall succeeded Wade in April 2012.