Floods, storms and scorching heat… Extreme weather has been raging across the globe this summer, with the latest victims at the Tokyo Olympics where athletes are not only competing against each other, but are also battling temperatures topping 32 degrees Celsius with 80% humidity. What's causing the extreme weather? And how is Tokyo 2020 responding to these extreme conditions?

To find out more, we've invited Ma Jun, director with the Institute of Public & Environmental Affairs; John Matthews, our correspondent in Tokyo; Paul Dong, co-founder of Ei Asia Limited; and Isabel Hilton, founder and senior adviser of China Dialogue.