Earth's core will eventually lose its internal heat over geological timescales
the verdict
SUPPORTED
the evidence backs this
confidence 92/100
Geophysical and thermodynamic studies confirm that Earth's core acts as a cooling heat engine that gradually loses its internal thermal energy over geological timescales.
Evidence for · 2
Thermal and electrical conductivity of iron at Earth’s core conditions
2012 · cited by 575
The paper discusses the Earth's core as a heat engine driven by slow cooling and radiogenic isotope decay over geological timescales.
See more details
More for · 1
Evolution of the inner core of the Earth: consequences for geodynamo
2019 · cited by 8
The evolutionary model explicitly includes the cooling of the liquid adiabatic core and future projections of thermal energy sources over billions of years.