Is this vanishing snow patch a sign of climate change?

Hidden on one of Scotland's most isolated Cairngorms is a patch of snow that is believed to have been the longest lasting in the UK.

A snow patch is permanent or long-lasting area of snow, unlike seasonal snow that will melt during warm weather.

However, now it has melted for the fourth year in a row.

This has been documented by researchers, who now believe its recent melting is due to the affects of climate change.

Iain Cameron, who has spent decades surveying the patch, takes us to check it out.