The river Bhagirathi,
near Gangotri, Himalayas, showing the interplay of rock, water and
vegetation (Picture courtesy: Sudarshana Anand, JNU). See special
section.
The editor thanks V. Rajamani, School
of Environmental Sciences, Jawaharlal Nehru University, New Delhi,
Indiafor agreeing to be guest editor
for the special section.