This unit looks at the evidence, predictions and the resulting planning implications of global warming and climate change. The evidence is evaluated for temperature anomalies, glacial retreat and changes in rainfall patterns for the 20th century. Past climates over the last 100,000 years are examined particularly for human societies over the past 6,000 years. The predictions of the impacts of future climate change will be analysed with the planning implications at a local, regional and national level considered. The forecasting of drought and the questions of water management will be discussed. The students will appreciate the complex scientific and planning arguments of future resource management for urban and rural communities.