 A carbon tax used to reduce GHG emissions, has the potential to help eradicate poverty by providing revenue to limit global warming to well below 2 degrees Celsius with a poverty gap of US$84 billion and a carbon tax revenue potential of US$1,600 billion in 2030. International Cooperation is crucial for meeting this shortfall in low-income countries. This article was authored by Shinichiro Fujimori, Tomoko Hasegawa, and Kenoshiro.