A Bristol polar explorer has written a book about his icy adventures to help inspire and motivate business leaders.

Alan Chambers, 40, from Whitchurch, right, wrote Keep Walking: Leadership Learning in Action to put lessons learned on the ice caps into the boardroom.

The book tells the story of Mr Chambers' polar expedition in 2000, in which he led the first successful British attempt to trek to the geographic North Pole, the "hard way" from Canada.

During the 10-week expedition Mr Chambers and his team covered 672 nautical miles, with temperatures as low as -65C and dragging sleds the same weight as a baby elephant.

Despite facing dwindling food supplies and extreme weight loss, the team completed their trek through determination, guile, detailed planning and motivation.

It is these attributes that Mr Chambers and co-author Dr Richard Hale, 48, from Coombe Dingle, hope to elaborate on through their book, as well as through talks and events for business leaders.

Mr Chambers, a former Royal Marine who was honoured with an MBE after his 2000 expedition, has since led chief executives and business people on a number of expeditions to the North Pole to help them explore their own leadership qualities.

He said: "The last few years have been an incredible journey for me, both in terms of the expeditions I have been on and in realising what can apply back in the world of business and education.

"I have been inspired by the hunger for learning I see in leaders of world-class organisations who join our expeditions for their own personal reasons."

The book also discusses Mr Chamber's crossing of Greenland last year with fellow explorer Peter Herbert, from Somerset. That was broadcast to schools across the UK on the internet as an educational tool through Mr Chamber's and Dr Hale's company, Feet of Green.

Dr Hale, an ex Bristol Grammar School student and now business liaison director for Feet of Green, said: "Alan and I have been working with leaders in business and it is clear that a new approach to leadership is required. Leaders need to be agile, innovative, resourceful and extremely resilient. The style that Alan has developed, influenced by the Royal Marine leadership ethos, I believe is key for the future."