How much will it cost to limit global warming to 1.5°C? Chapter 4 of the 2018 IPCC report Global Warming of 1.5°C (SR1.5) presents an estimate of the combined investments required to limit global average temperature rise to 1.5°C above early industrial levels, landing on a mean of roughly $48 trillion over 20 years, or $2.4 trillion per year for energy investments alone (summarized in Box 4.8, Table 1).

The models incorporated in the study however assume a heavy, ongoing reliance upon fossil fuels, resulting in what we believe is an inflated estimate. These models miss out on huge savings…

Karl Burkart

Managing Director One Earth, formerly DiCaprio Foundation Dir. Science & Technology

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