Refreshingly positive article. However the author has stretched the facts to support the claim made in the title. She states .....
" ..... the greenest city centre in Great Britain, with a whopping 61% of its catchment area given over to parks, woodlands and gardens, including one-third of the Peak District National Park, with its exposed moors and scrubby heathland. "
Surely the Peak District parts don't count as the "city centre".