Macro N Cheese

We often talk about climate change on this podcast. The IPCC deadline is hanging over our heads like the sword of Damocles. This week Steve talks to David Keith, a professor of both Applied Physics and Applied Policy at Harvard, and author of A Case for Climate Engineering. Climate engineering, a term for solar geoengineering or solar radiation modification, would enable us to alter the Earth's reflectivity and reduce some of the climate risks that come from accumulated carbon dioxide. Keith is quick to point out that this is not a silver bullet but should be considered as part of a multi-pronged strategy. Managing climate risk involves four basic actions: Cut emissions by decarbonizing the energy system Remove carbon dioxide from the atmosphere Solar radiation modification, or solar geoengineering Adaption to reduce the harms of climate change on crops, people, and ecosystems While there’s no way to address climate change without replacing our energy system, it’s not the entire solution. If we stop al