Ulrich Beck (May 15, 1944 – January 1, 2015) was a renowned German sociologist best known for his theory of the 'risk society.' He taught at the University of Munich and the London School of Economics. His seminal work, 'Risk Society: Towards a New Modernity,' became a classic in sociology. Beck's research focused on globalization, individualization, climate change, and cosmopolitanism, profoundly influencing contemporary sociology, political science, and environmental studies. He passed away from a heart attack in 2015 at age 70.