Out with asphalt: US schoolyards transformed into green oases - in pictures

Playgrounds at about 300 schools have been renovated, benefiting students but also addressing the climate crisis

Schoolyards are supposed to be somewhere kids want to play. But if your schoolyard is little more than an empty expanse of asphalt - merely boring when the weather is fine but mercilessly hot and unprotected when the mercury rises - then it becomes the opposite: a place kids want to avoid.