How much would it cost to fix climate change—and who should pay? Should it be the United States—the biggest polluter historically? Should it be China—the largest annual polluter these days? Is the entire industrial world to blame? These are some of the thorny questions the Heat of the Moment host John D. Sutter discusses with Nobel Prize-winning economist Joseph Stiglitz. Stiglitz is a top expert on how economic policy can play a leading role in steering the world away from fossil fuels.

Later, Emily Johnson reports on real-life examples of how investments can kick-start change. She looks at projects supported by our partners at the Climate Investment Funds in Jamaica, Tajikistan, and Turkey.

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