Shawna Vogel

"This nagging dilemma has come to be known as the excess sulfur problem... Just as atmospheric scientists were beginning to grasp the importance of a volcano's sulfur emmisions, solid earth scientists …"

"The dynamic earth has been spewing out the constituents of evolution and progress throughout its history, nurturing all species from the very first forms of life to our own."

"The crust and mantle churn together on both the yearly scale of incremental plate motions and the epochs of supercontinental cycling."

"In geophysical circles, the question is not so much why the sea is salty, but why it remains just as salty as it is, no more, no less."

"According to Woese's evolutionary tree, the most primary of the present-day bacteria lie within a group called the archaebacteria. All archaebacteria thrive in intense heat... Woese believes that that…"

"The one known fingerprint of a sulfurous volcano is a compound called anhydrite, which dissolves in groundwater. Just a few years after an eruption... all traces of anhydrite are gone. This explains w…"

"Paleoseismology... is science by backhoe. Researchers dig deep, straight-walled ditches and search up and down for signs of shaking."

"Even in comparison to out sister world , our home planet is exceptional."