BEIJING - Rich countries should facilitate green trade and not set up barriers to a low-carbon economy in tackling climate change, Vice-Premier Li Keqiang said.

At the opening ceremony of a climate change forum held in Beijing over the weekend, Li also called for developed nations to assist the developing world in cultivating its green economy with technology transfer, financial assistance and market liberalization.

Li made the remarks amid criticism that a number of rich countries are turning a blind eye to international treaties, requiring developing countries to take binding carbon reduction responsibility and considering carbon tariffs on imports from other countries.