The legacy of China 's powerhouse of cheap , labor-intensive exports is a natural environment tainted by the pollutants of economic growth . CNN asked experts to explain biggest challenges facing China . The country is the world's largest importer of oil and gas, but it has been struggling with a slowing economy for years. Delegates are meeting for National People 's Congress in Beijing . Xi Jinping to formally become Chinese president at end of congress .
CNN asked experts to explain biggest challenges facing China . The country is the world's largest importer of oil and gas, but it has been struggling with a slowing economy for years. Delegates are meeting for National People 's Congress in Beijing . Xi Jinping to formally become Chinese president at end of congress .