Based on analysis of recent data on the evolution of global temperatures, snow and ice covers, and sea level rise, the Intergovernmental Panel on Climate Change (IPCC) has recently declared that "warming of the climate system is unequivocal." Global surface temperatures, in particular, have...

Human, natural, and physical capital assets are a country's main resources for growth and welfare improvements. Their distribution, growth and productivity largely determine people's income and welfare. The poor rely on human and natural capital in addition to physical capital, so the...