Gerta Keller
Gerta Keller
Gerta Kelleris a paleontologist who contests the Alvarez hypothesis that the Chicxulub caused the mass extinction 66 million years ago. Keller maintains that this impact predates the mass extinction and that Deccan volcanism and its environmental consequences were the most likely major cause possibly exacerbated by the impact...
environmental extremely organisms sensitive
These single-celled organisms are extremely sensitive to environmental changes.
dangerous less
Asteroids may be less dangerous than they've been made out to be.
asteroid dinosaurs few past perfect popular theory
Dinosaurs are very popular, and the asteroid theory is sexy, it's a perfect story, and in the past few years it's all you've read in the popular press.
confident quite
We're quite confident we're on the right track.