The planet has enough soil for only another 80 to 100 crops, which will last 60 years at the most. Sadhguru, author and founder of the Isha Foundation, says that because we are removing organic content from the soil, 40% of the world’s topsoil is gone. He says we still have 15 to 25 years to turn things around, otherwise we will soon be living in the desert. Sadhguru took part in a brief Q&A with LSE Business Review’s managing editor, Helena Vieira, during the World Economic Forum’s Great Narrative Meeting in Dubai.