Through an ancient looking-glass,
Perhaps you’d see more H2 gas,
And if with denser gas collided,
Greater greenhouse warmth provided.
With faint young sun, would this suffice
To maintain water and not ice?
And when methanogens arrive?
This old debate is much alive.
Hydrogen-Nitrogen Greenhouse Warming in Earth’s Early Atmosphere, Wordsworth and Pierrehumbert, Science, 2013
This is one in a series of poems written by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Institute of Marine and Coastal Sciences at Rutgers University