Should Everest be closed?

Tourism is turning the world's highest peak into its biggest rubbish dump, claim conservationists, who are pressing for controls on climbing. But will this cost sherpas their livelihood? Dan McDougall in Kathmandu reports on the campaign.

The vanity case for smokers

Esther Addley: It's a tricky business persuading smokers not to smoke. Not least because everyone who has ever lit a cigarette knows that particular little shopping list ain't the half of it.