Ahead of the upcoming COP28 climate summit in Dubai, the UN has issued its 2023 Emissions Gap Report. It’s pretty grim. It shows that the globe is headed for nearly 3°C (5.4°F) of warming compared with preindustrial levels through 2100, instead of the 1.5°C (2.7°F) agreed to at Paris in 2015. Marco Werman focuses on the specific challenge for small- and medium-size countries to shift to sustainable energy with Narasimha Rao, professor of energy systems at Yale University’s School of the Environment and one of the authors of the latest UN report.