Climate change in Britain's backyard

Ten years ago, Carneddau in Snowdonia was covered in snow above 610m (2,000ft) in winter but, as the next slide shows, that's now a thing of the past. Photograph: Joe Cornish/NTPL

Carneddau in Snowdonia in the winter of 2005. There is no sign of the snowline that used to be a regular feature. Photograph: Joe Cornish/NTPL

Borrowdale in the Lake District is the wettest place in England, with higher rainfall than some tropical rainforests. The forest floor is home to rare mosses and ferns which need constant moisture because they have no roots. Photograph: Simon Fraser/NTPL

As our climate changes our gardens are seeing the arrival of more exotic diseases. This magnolia at Trengwainton Garden in Cornwall is under attack from the phytopthera ramorum virus. Photograph: Stephen Robson/NTPL

Frosts in Cornwall are so rare that exotic plants such as this aeonium from the Canary Islands can now thrive. The number of frosts is declining all over the UK and this is allowing such tropical species to grow further north. Photograph: Stephen Robson/NTPL

Twenty years ago the moat at Lyveden New Bield in Northamptonshire was full of water. In recent years it has been dry more often than wet. Photograph: Paul Wakefield/NTPL

The River Tweed illustrates what can happen when a hot summer raises the water temperature. Algae flourish and can form a mat which, when it decomposes, depletes water of oxygen and leaves fish at risk of suffocation. Photograph: Simon Fraser/NTPL