China's energy-hungry, high-polluting industries continued to grow too fast in 2013, putting "huge pressures" on the environment and causing air quality to worsen, the country's pollution agencysaidonTuesday,according to Reuters.Premier Li Keqiang "declared war" on pollution in a major policy address this month, but China has long struggled to strike a balance between protecting the environment and keeping up economic growth.China is still too slow in reforming its resource-intensive economy, the Ministry of Environmental Protection said in a statement on its website (www.mep.gov.cn)."The pace of restructuring and upgrading industries has slowed, the mode of development remains crude, and emissions of atmospheric pollutants have long exceeded environmental capacity," it said.Rapid urbanisation brought dust from new housing and road building, while more traffic increased emissions. Slower wind speeds than usual in northern China were an additional contributing factor last year.Only three out of 74 Chinese cities fully complied with state pollution standards in 2013, the ministry said earlier this month.