Asia is well-positioned to play a leading role in advancing the global plastic treaty. Indonesia and India provide good examples of how proactive national action plans can help unlock finance and encourage innovation in the private sector. By Ellen Martin

With the growing urgency for climate solutions, blockchain technology could be a powerful tool to revolutionise green finance, especially as transparency and traceable information are critical in measuring and monitoring climate impact. By Dave Sandor

The devastating effects of climate change are bearing down on cities. For adaptation and decarbonisation to work, municipal leaders need to devote resources to the collection of better climate data and use them in the right way. By Carlo Ratti and Robert Muggah

If this year’s flooding and wildfires came as a surprise to inhabitants of rich countries, that is because the modern political compact was built on effective water management. By Giulio Boccaletti