Christopher Essex is Professor in the Department of Applied Mathematics at The University of Western Ontario (current trade name: Western University). He co-discovered the entropy production paradox, which he presented by invitation to the Canadian Mathematics Society, and has been invited to present the latest results there again this year. He computed the first accurate entropy production rate for the Earth, the first accurate temperature for laser radiation, and pioneered the concept of computational over-stabilization, as well as the competitive modes method for finding chaotic domains. On the physics side, he has done basic work on the transfer of photon and neutrino radiation. In addition to various earlier scholarships and awards, he held a Humboldt Fellowship and was an NSERC postdoctoral fellowship. Later he was appointed by the Governor General for 6 years to sit on the Council of the main granting agency for science in Canada (NSERC). Meanwhile, he has been working with Robert Adams on the most recent four editions of Calculus: A Complete Course.