US
First British-American woman to scale peak says she wants to help country in any way she can
Climate Change secretary says country faces immense challenges
The world’s second highest mountain, unlike other 8,000 metre peaks, has never been scaled in winter
Says K2 provided steepest challenges
Vanessa O'Brien, 52, is the first American woman to climb the treacherous mountain
American woman, Icelander make first ascents; four Pakistanis summit Broad Peak
We looked down the ridge, we looked in the valleys, we looked everywhere, we triple checked, says search team leader
O’Brien keen to become first American and British woman to successfully climb and descend the savage mountain
Himalaya, Karakoram and Hindu Kush all converge in Gilgit
Pakistan has long been a draw for foreign climbers lured by some of the most spectacular mountains on Earth