This volume provides a uniquely rich set of arguments and data for prioritizing our responses to some of the most serious problems facing the world today, such as climate change, communicable diseases, conflicts, education, financial instability, corruption, migration, malnutrition and hunger, trade barriers, and water access. Leading economists evaluate the evidence for costs and benefits of various programs to help gauge how we can achieve the most good with our money. Each problem is introduced by a world-renowned expert analyzing the scale of the problem and describing the costs and benefits of a range of policy options to improve the situation. Shorter pieces from experts offering alternative positions are also included; all ten challenges are evaluated by a panel of economists from North America, Europe, and China who rank the most promising policy options. Global Crises, Global Solutions provides a serious, yet accessible, springboard for debate and discussion and will be required reading for government employees, NGOs, scholars and students of public policy and applied economics, and anyone with a serious professional or personal interest in global development issues. Bjørn Lomborg is Associate Professor of Statistics at the University of Aarhus and the director of the Danish Environmental Assessment Institute. He is also the author of the controversial bestseller, The Skeptical Environmentalist (Cambridge, 2001).