Forty years ago, "Limits to Growth" addressed the grand question of how humans would adapt to the physical limitations of planet Earth. So, where are we now? In the book "2052," a professor of climate strategy issues a progress report and makes a forecast for the next 40 years.

Jorgen Randers is professor of climate strategy at the BI Norwegian Business School, where he works on climate issues and scenario analysis. He was previously president of BI and deputy director general of WWF International (World Wildlife Fund) in Switzerland. He lectures internationally on sustainable development and especially climate, and is a nonexecutive member of a number of corporate boards. He sits on the sustainability councils of British Telecom in the UK and the Dow Chemical Company in the United States. In 2006 he chaired the cabinet-appointed Commission on Low Greenhouse Gas Emissions, which reported on how Norway can cut its climate gas emissions by two-thirds by 2050. Randers has written numerous books and scientific papers, and was coauthor of The Limits to Growth in 1972, Beyond the Limits in 1992, Limits to Growth: The 30-Year Update in 2004, and 2052: A Global Forecast for the Next Forty Years in 2011. Randers lives in Oslo, Norway.