Science Quickly Heat dome, legal win for vaccines, lead-tainted clothes
Mar 23, 2026
Andrea Thompson, senior desk editor for life sciences at Scientific American and experienced science communicator. She breaks down a March heat dome and its health and wildfire risks. They cover a federal ruling that blocks changes to the childhood vaccine schedule. The conversation also looks at lead-contaminated kids' clothing and the surge to 10,000 Starlink satellites in orbit.
AI Snips
Chapters
Transcript
Episode notes
Early Season Heat Dome Overwhelms Acclimation
- A March heat dome pushed mid-March temperatures into the triple digits across the Southwest, creating an unusually intense and persistent heat event.
- Andrea Thompson explains this was caused by a very strong high-pressure ridge that plopped summer-like heat onto late winter before bodies and systems could acclimate.
Heat Whiplash Raises Health Risks
- Rapid onset of extreme heat raises immediate public-health risks because people haven't acclimated and heat warnings were issued in several areas.
- Thompson warns higher illness and mortality risks and notes heat advisories are already in effect.
Heat Dome Threatens Snowpack And Fuels Wildfires
- The heat event will likely melt remaining mountain snowpack and reduce water absorption, setting up a drier spring and higher wildfire risk.
- Thompson notes low winter snowpack and rapid melting mean lost runoff and more fuel for potentially severe fires.