Glaciers, sediments, and pollen can be used to reconstruct the climate of the past. Beyond "nature's archive," other sources, ...

A colossal ice core sample drilled in Antarctica may contain the oldest, unbroken timeline of Earth's climate, stretching back more than a million years.

Crucially, the reconstruction has a consistent timeline which enables ... end to the icehouse period. Scientists previously thought that the Late Paleozoic ice age gradually waned away, but ...