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This paper argues that the most obvious measure to combat greenhouse gas emissions is to remove the vast subsidies that promote higher energy consumption in more than half of the countries in the world, and that this measure should take precedence over many others. The article discusses also why removing energy subsidies is so difficult, and which type of state may succeed. This question is examined with reference to China, India and Russia, all major contributors to global warming. Non-democratic governments and energy importers might be expected to be more likely to halt subsidies. In fact, energy trade imbalances do not seem to significantly affect the capacity to reduce subsidies. The risk of social unrest is a political restraint in all three countries. Perhaps surprisingly, democratic states may be better positioned to remove subsidies than non-democratic ones. [ABSTRACT FROM AUTHOR]