I climbed Everest expecting a rubbish dump but what I found surprised me | Ben Fogle

A huge clean-up is returning the world's highest mountain to its former glory

Just over two weeks ago I was standing on the roof of the world, both figuratively and literally. I was 8,848 metres up on the summit of Mount Everest. It was the culmination of many years' hard work, and the realisation of a childhood dream.

I have been overwhelmed by the tide of goodwill and support but one thing has become increasingly apparent. In many people's minds, Everest has lost her crown. She has become a mountain synonymous with death, exploitation and pollution.