169 citations · 561 across the 11 of their papers we have counts for
3 papers · 1 filter
Carbonate-Silicate Cycle Predictions of Earth-like Planetary Climates and Testing the Habitable Zone Concept
Owen R. Lehmer, David C. Catling, Joshua Krissansen-Totton
In the conventional habitable zone (HZ) concept, a CO-HO greenhouse maintains surface liquid water. Through the water-mediated carbonate-silicate weathering cycle, atmosp…
Abundant atmospheric methane from volcanism on terrestrial planets is unlikely and strengthens the case for methane as a biosignature
Nicholas Wogan, Joshua Krissansen-Totton, David C. Catling
The disequilibrium combination of abundant methane and carbon dioxide has been proposed as a promising exoplanet biosignature that is readily detectable with upcoming telescopes su…
Creation and Evolution of Impact-generated Reduced Atmospheres of Early Earth
Kevin Zahnle, Roxana Lupu, David Catling +1
The origin of life on Earth seems to demand a highly reduced early atmosphere, rich in CH4, H2, and NH3, but geological evidence suggests that Earth's mantle has always been relati…