s of thousands of young people skip school to march through downtown san francisco to demand that federal leaders take action on the issue of climate change. >>today's may now playgrounds are designed for children to romp in play and have fun but at one elementary school playground in oakland children are being told to watch their steps at least one child has been injured there and now some parents are calling on the district to make the playground save kron four's haaziq madyun has the story. >>these 2 parents are putting out what they say are hazardous potholes cracks and uneven pavement on the children's playground here at franklin elementary school in oakland, just take a look at this video so really it's an ongoing problem, you know a scratch is bruises could. >>it's very and should not be as describing some of the injuries. she says she found out her 8 year-old son after the school called her about him being heard on the playground. >>they told me i have to be because he was bleeding so bad to have to be a mix minister ahsan says another problem the rubber padding underneath the play structure is no longer providing cushion when kids fall on the ground we have kindergartners here up to 5t