Concerns over heat have caused the marathon to be moved from Tokyo. external-linkProfessor Mike Tipton said he expects Tokyo to be the most "thermally stressful Olympics" of recent times. Mara Yamauchi, who competed in the marathon for Britain at the 2008 and 2012 Olympics, backed the report. She said: "We risk potentially far-reaching consequences for sport as we know it if climate change continues apace. The Tokyo Games - moved from 2020 because of the Covid-19 pandemic - are scheduled to run from 23 July to 8 August.

Source: BBC May 26, 2021 10:41 UTC