Complex sentence: The list of Old Martinians from the Lucknow School is distinguished by Rajendra K. Pachauri, chairman of the Intergovernmental Panel on Climate Change, which shared the Nobel Peace Prize for 2007 with Al Gore.
Split into simpler sentences: The list of Old Martinians from the Lucknow School is distinguished by one recent Nobel laureate Rajendra K. Pachauri, chairman of the Intergovernmental Panel on Climate Change. IPCC led by Dr. Pachauri shares the Nobel Peace Prize for 2007 with Al Gore.