Climate change and variability have played a major role in shaping human history and the prospect of a warming world as a result of human activities (global warming) presents society with an increasing challenge over the coming decades. This module covers the science of climate change and our current understanding of anthropogenic effects on climate. It provides details about the approaches, methods and techniques for understanding the history of climate change and for developing climate projections for the next 100 years, supporting further study of the scientific or policy aspects of the subject in either an academic or applied context. Co-taught with ENV-3A49. TO TAKE THIS MODULE YOU CANNOT HAVE PREVIOUSLY TAKEN ENV-3A48, ENV-3A49 OR EQUIVALENT.