Reason 1. A quarter of English league football grounds will be at risk from flooding every season.
Reason 2. Australian Open tennis players have fainted, their shoes melting, due to extreme heat and wildfire smoke.
Reason 3. Warmer winters are melting the ice and snow essential to sports like snowboarding and hockey.
Reason 4. Half of previous Winter Olympic cities will be unreliable as winter sports hosts.
Reason 5. Severe bushfires impact cricket games at all levels; heat stress, smoke inhalation, game disruption.
Reason 6. One in three British Open golf courses will be damaged by rising sea levels.
Reason 7. Emissions from global sport is believed to equal the damage done by some entire countries like Bolivia or even Spain.