Visitors look at a model of Tesla’s Shanghai factory at the Shanghai Carbon Neutrality Expo, which opened Sunday. The first of its kind in China, the expo represents China’s response to climate change and brings an international stage for green technologies and applications. More than 600 exhibitors, including Arup, Baowu Steel, State Grid, Schneider Electric and Tesla are attending the four-day event, showcasing applications and innovation in various sectors like transportation, industrial design and finance. Xinhua | 