Editor's note: There's no better time to raise questions than the NPC/CPPCC sessions, which bring together China's top policymakers. China Daily asks experts from different countries what they wish they could ask the members and deputies about topical issues. Reporter Zhang Haizhou gathers the answers.

Adrian van den Hoven, international relations director of Brussels-based BUSINESS EUROPE, would like to ask about China's role in multilateral frameworks such as WTO and G20. He also wants to know whether China has the willingness to cooperate with the European Union on issues for a global agenda such as climate change.

Sun Zhenyu, who was China's first ambassador to the World Trade Organization, said China was open to all international organizations.

On climate change, Sun said, despite arguments with Western countries, "we have no problem with attending" those important international gatherings. China has sent high-level delegates to all international conferences on combating climate change, the CPPCC member said.

"China is actually very active on fighting climate change. We have taken a lot of measures," Sun added. "We have done more than developed countries to some extent."

He said China has "made great achievements" in developing clean energy sources, such as wind, nuclear, and solar.

Another CPPCC National Committee member, Zhang Jiuhuan, formerly China's ambassador to Thailand and Singapore, also said China had been very active on combating climate change.

"China stressed the principle of common but differentiated responsibilities for all countries on addressing the issue, although some countries don't agree with that view," Zhang said.

"Why do we think the responsibilities are different? Because it's the West that has emitted too much and contributed the most to climate change through their development.

"Developing countries haven't contributed that much to the problem."

Zhang also said China will play a greater and more active role in international organizations, because "China will find its interests becoming more and more intertwined with those of the world" as it gets stronger.

"China has been playing an active role in preserving world peace and stability, stimulating global economic recovery, and fighting climate change," he said.

Contact the writer at zhanghaizhou@chinadaily.com.cn