Figure D1 GLACIAL
As we descend, with clouds of foggy breath
We enter a bleak citadel of ice
Facing a frozen plain. Nothing but death,
It seems, rules here: see the heavy price
Paid by the Earth, locked in a chilly vice.
Yet it was tiny microbes made this pall
(An age, yet in Earth’s ages but a trice)
Whose oxygen made greenhouse gases fall:
Thus see a world transforméd by the very small.