Marcin Korolec (R), Polish environment minister and president of COP19/CMP9, attends a press conference during the annual UN climate talks in Warsaw, capital of Poland, Nov. 12, 2013. A high-level conference for the coal industry scheduled in parallel to the annual UN climate talks in Warsaw could be "potentially interesting for developing countries," Marcin Korolec said here on Tuesday, amid rising criticism over the country's "hijacking" global climate negotiations. (Xinhua/Zhang Fan)

Marcin Korolec (Front), Polish environment minister and president of COP19/CMP9, attends a press conference during the annual UN climate talks in Warsaw, capital of Poland, Nov. 12, 2013. A high-level conference for the coal industry scheduled in parallel to the annual UN climate talks in Warsaw could be "potentially interesting for developing countries," Marcin Korolec said here on Tuesday, amid rising criticism over the country's "hijacking" global climate negotiations. (Xinhua/Zhang Fan)