Complex sentence: He contributed to the reports of the IPCC, which was awarded the Nobel Peace Prize in 2007, demonstrating the role played by soil in the Earth's ecosystem and the impact of climate change on land degradation.
Split into simpler sentences: He contributed to the reports of the IPCC, which was awarded the Nobel Peace Prize in 2007. He demonstrated the role played by soil in the Earth's ecosystem and the impact of climate change on land degradation.