New Delhi, June 27 -- Climate Change and You is a fortnightly newsletter written by Bibek Bhattacharya and Sayantan Bera. Subscribe to the newsletter to get it directly in your inbox.

Dear reader,

Ever since the start of the Fifa World Cup about two weeks ago, there has been much debate around the biggest rule change that we've seen at the World Cups: the hydration break. Pausing the game for three minutes in both halves, so players can drink water and cool down, isn't strictly new to the tournament. It was also a feature at the 2022 World Cup in Qatar. What is different this time is that this is a mandatory rule.

Much of the debate has swirled around the use-and misuse-of the hydration break for Fifa to bolster its advertising revenue...