![Dr Charlie Gardner on X: "Just in case anyone thought there was still a chalk stream in good condition, anywhere in England https://t.co/BYTtGcWXFs" / X Dr Charlie Gardner on X: "Just in case anyone thought there was still a chalk stream in good condition, anywhere in England https://t.co/BYTtGcWXFs" / X](https://pbs.twimg.com/media/EviqJdzXAAMg3Wu.jpg)
Dr Charlie Gardner on X: "Just in case anyone thought there was still a chalk stream in good condition, anywhere in England https://t.co/BYTtGcWXFs" / X
Helen's journey on X: "Map of chalk streams of England, including tributaries of the Thames. Legend shows ecological status. #environment #water #hydrology #rivers #streams" / X
![The battle to save England's chalk streams, one of the planet's rarest habitats | Rivers | The Guardian The battle to save England's chalk streams, one of the planet's rarest habitats | Rivers | The Guardian](https://i.guim.co.uk/img/media/dbdf3c42975c1aa5267c13611b2d899ea8d76afb/0_306_6016_3608/master/6016.jpg?width=1200&height=900&quality=85&auto=format&fit=crop&s=d0512683046b0233eb24165ab4c8544f)