The year 2017 set a record for the number of wildfires around the globe, and their full impact on the atmosphere remains uncertain. We do know that wildfires can sometimes fuel “dirty” thunderstorms, ...

I recently joined a tour of Sicily’s Mount Etna that was supposed to include a hike on the Italian volcano’s upper slope following a roughly 9,500-foot ascent in a 4×4 vehicle. Unfortunately for my ...