Summarises some of the predicted natural consequences of increasing concentrations of greenhouse gases in the atmosphere. Changes in temperature, climates, physical and chemical impacts on the biosphere as well as biodiversity loss are considered. Then some of the expected social and economic consequences of global warming are discussed. Subjects considered are the impacts of global warming on bio-industries and social conditions, the economic costs of greenhouse gas emissions and the effects of climate change. Attention subsequently turns to the environmental Kuznets curve and the inappropriate use of the relationship. For example, it is stressed that reducing the intensity of greenhouse gas emissions in relation to GDP does not necessarily reduce total greenhouse gas emissions. Furthermore, even if they are reduced, greenhouse gases can continue to accumulate in the atmosphere. Some suggestions are then made about how the global warming problem might be addressed.