Frank Ackerman is the author of the 2007 report, 'Debating climate economics: the Stern Review vs. its critics', which was written for the organization Friends of the Earth. [1, 2, 4] In the report, he reviews the controversies surrounding the Stern Review and argues that there is more support for Stern's analysis than for his conservative critics. [7] He suggests that, if anything, the Stern Review understates the urgency of the climate problem. [7]