He looks tough.
The explorer and climate change campaigner Parker Liautaud puts most other 19-year-olds to shame.
Establishment figures still fail to portray the Internet in a balanced light
Climate change may be intensifying the natural cycle and may prolong it, says expert, but it is too early to say
Environmental group launches campaign to establish global sanctuary free from oil drilling
Matt Dickinson, 46
A loss of sea ice could be a cause of the bitter winds that have swept across the UK in the past week, weather experts say
Could the British still summon the stoicism of Captain Scott, asks Harry Mount
The much-loved Plough is riding high in the heavens.
'I'm not a sociopath, but I'm happy on my own'
What is driving children to take on ever-more risky expeditions across oceans and polar ice caps? As another teenager sets out on a record-breaking trip, Simon Usborne investigates
After nearly a month in arctic conditions of minus 40 degrees Celsius, the Catlin Arctic Survey team are finally provided with supplies