Although population and climate change are global issues, there are huge disparities in per capita emissions by country. Developed, industrialized countries contribute far more to global warming than developing countries. In 1995, the 20 percent of the world's population living in countries with the highest per capita emissions contributed 63 percent of the world's fossil fuel CO2 emissions. The 20 percent of the world at the opposite end of the spectrum contributed only two percent of global fossil fuel CO2. For example, the average person in the United States contributes five times as much carbon dioxide to the atmosphere as the average Mexican, and 19 times as much as the average Indian. In addition, inequality in distribution of wealth often means that a small percentage of the population of a country may be responsible for the majority of greenhouse gas emissions. There is currently much debate about whether developing countries will need to exploit resources and pollute in order to develop their economies.