The Download: a reality check for geoengineering and the science of interoception

Solar geoengineering, a concept involving deliberate climate system intervention to counter global warming, is progressing from computer simulations to practical engineering challenges. Researchers are developing aircraft, materials, and systems for its implementation, but early deployment would necessitate substantial new infrastructure, time, and investment, according to MIT Technology Review. Separately, research into interoception, the body's internal sensing mechanism, is accelerating due to a 2021 Nobel Prize and advanced tools for mapping internal signaling. Scientists are decoding the communication pathways between the body and brain, which could lead to new treatments for conditions like obesity and anxiety, as detailed by MIT Technology Review Narrated. In other technology news, SpaceX's market value reached $2.659 trillion this week, briefly surpassing Microsoft and becoming the world's fifth most valuable company, as reported by Axios, Quartz, and The Guardian. This valuation surge followed an initial public offering.