This book investigates environmental indicators accounting for indirect emissions (as embodied in international trade) within the framework of input-output analysis and introduces an indicator of environmental responsibility derived from consumer and producer responsibility, i.e. upstream emissions embodied in final demand and downstream emissions embodied in primary inputs. A new estimation method for international inter-industry transactions is derived from the maximum entropy principle and is computed using a genetic optimization algorithm. This estimation method is then applied to databases on international trade and greenhouse gas emissions in order to report embodied emissions and emissions responsibilities for a global input-output model. The topic of indirect emissions and their accounting is still relatively unexplored in environmental economics and this groundbreaking new book will help to redress this balance.