Media playback is unsupported on your device

Travelling to a Himalayan glacier

24 September 2013 Last updated at 00:36 BST

Scientists have discovered that smoke from cooking stoves and dirty engines is causing glaciers to melt faster.

The glaciers are already under pressure from climate change. The smoke also deposits black soot on to the glaciers, which makes them absorb more heat.

Roger Harrabin and cameraman Neil Paton travelled to the Batal Glacier in India to film a piece as part of the BBC's Intergovernmental Panel on Climate Change coverage.

Roger talks about his travel experience and what it was like to see a glacier up close.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.