This volume presents an Empirical Model of Global Climate developed by the authors and uses that model to show that global warming will likely remain below 2 C, relative to preindustrial, throughout this century provided a both the unconditional and conditional Paris INDC commitments are followed b the emission reductions needed to achieve the Paris INDCs are carried forward to 2060 and beyond.The first section of the book provides a short overview of Earth's climate system, describing and contrasting climatic changes throughout the planet's history and anthropogenic changes post-Industrial Revolution. The second section describes the climate model developed by the authors Canty et al., Atmospheric Chemistry and Physics, 2013 and contrasts the model with climate models used in the Intergovernmental Panel on Climate Change IPCC 2013 Report. Chapter 3 examines both the unconditional i.e., firm commitments and conditional Paris INDCs commitments contingent on financial flow andor technolo