Campaigners say the stunning lake is changing colour due to sewage - but the water company insists it's not to blame.

High visitor numbers are turning one of Britain's most scenic lakes green, researchers say. A report funded by the UK space agency suggests a link between peak tourist periods and algal blooming at ...

High visitor numbers are turning one of Britain's most scenic lakes green, researchers say.A report funded by the UK space ...

"There is a significant correlation between visitor numbers and chlorophyll content," Mr Flemmings says. Chlorophyll is the ...