Where Did Earth's Water Come From? & How Do We Know? GEO GIRL
23:45
Origin of Life on Earth and Early Evolution | GEO GIRL
21:19
How & Why Earth Went From Purple to Green (Twice!) | GEO GIRL
12:09
Where Did Water Come From?
27:36
The Key to Geologic Dating- How Do We Know The Rock's Initial Isotope Composition? GEO GIRL
32:01
Not ALL Tectonics is ‘Plate’ Tectonics (w/Steven Baumann!) | GEO GIRL
18:36
The Tipping Points of Climate Change — and Where We Stand | Johan Rockström | TED
24:12
When Life Moved To Land & The Disastrous Consequences | GEO GIRL
27:15