Mary Greeley has been following the events related to the Yellowstone Supervolcano for 11 years.
Mary is a recognized public expert.
The choice of tens of thousands of people who rely on Mary's daily reports regarding all the events, directly or indirectly impacting Yellowstone, confirms this.
Mary's daily summaries cover various aspects such as seismic activity in the region, ground warming, ground uplift, volcanic gas releases, and the relationship of Yellowstone to other global events.