Wingen: coal burning underground
At Burning Mountain near Wingen, New South Wales, Australia, an underground coal seam burns slowly. The coal-bearing strata were deposited in the Permian; the fire and its fuel have different ages.
At Burning Mountain near Wingen, New South Wales, Australia, an underground coal seam burns slowly. The coal-bearing strata were deposited in the Permian; the fire and its fuel have different ages.

Annual surface temperature from CESM (T): a model estimate, not a direct observation of the past.
0 Ma: pre-industrial climate/CO₂; modern sea-level and O₂ references.
Glacial-interglacial cycles with 120m+ sea level swings. Homo sapiens spread from Africa across the globe, and most megafauna went extinct.
Annual model means · 0 Ma: pre-industrial
Present