As a farmer in north Yorkshire, Sarah Houlston is deeply concerned about the impact fracking in the area would have on its soil, water and countryside. She has been part of the campaign fighting against the plans for the past three years, partly, she says, because she wants the land to still be there for her children. “I’m very worried about groundwater contamination, I’m worried about air quality, I’m worried that yields will reduce with the crops, and I’m worried about the quality of the food,” she says.

Photograph: Jason Taylor/Friends of the Earth