LAURA KNIGHT-JADCZYK AND JOE QUINN
Since the 9/11 attacks, no book has provided a satisfactory answer as to WHY the attacks occurred and who was ultimately responsible for carrying them out - until now.
A team of climbers and scientists investigating the mountain's North Face said snowfields remained in many gullies and upper scree slopes.
On these fields, they have come across compacted, dense, ice hard snow call neve.
Neve is the first stage in the formation of glaciers, the team said.
The team has also encountered sheets of snow weighing hundreds of tonnes and tunnels and fissures known as bergschrunds.
The large, deep cracks in the ice are found at the top of glaciers.
The team of mountaineers, geologists and botanists is recording wildlife and rock forms on the North Face.
Scottish Natural Heritage (SNH), Midland Valley Exploration and the Nevis Partnership, an organisation based at Torlundy, near Fort William, are involved in the three-year project.
So far, many new populations of rare fauna such as highland saxifrage, tufted saxifrage and wavy meadow grass have been recorded.