Kraków [SEP] head of government
Europe's dirtiest air pollution because of smog, caused by burning coal for heating, especially in winter.
Governance.
The Kraków City Council has 43 elected members, one of whom is the mayor, or President of Kraków, elected every four years. The election of the City Council and of the local head of government, which takes place at the same time, is based on legislation introduced on 20 June 2002. The President of Kraków, re-elected for his fourth term in 2014, is Jacek Majchrowski
the SNTE, education was decentralized from its control by the Ministry of Public Education (SEP) and came under the control of Mexican state government. Curriculum reform was also undertaken by the SEP, which included the creation of new textbooks. Protests resulted in the government's withdrawing the textbooks. A third component of the accord was the creation of a system of merit pay for teachers. 
The SNTE grew to be the largest single labor union in Latin America, and its head, Elba Esther Gordillo considered the most powerful woman