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Beihai is home to more than 10 percent of China's mangroves and has established eight conservation zones.

Beijing residents who fail to meet garbage classification standards will face fines up to 200 yuan (.50) if they refuse to rectify, starting May 1 after a newly revised regulation was passed by the capital's legislative body on Wednesday.

Beijing will commit itself to taking the lead in building the fifth-generation internet of vehicles to form a complete technological system of intelligent connected vehicles that meet the requirements of advanced autonomous driving, known as Level 4, said the white paper by the Beijing Commission of Economy and Information Technology, issued on the sidelines of the conference.

Because of limits on the release of license plates placed on big cities, smaller cities and rural areas are rising as important markets for carmakers and because of poorer road conditions, people there are more likely to choose SUVs.

Beijingers are expected to witness a heavier dusting starting on Wednesday night, and the wind chill factor will make temperatures feel colder, Chen said.