3D Climate Model Suggests Longer Lifespan for Earth's Biosphere Than Previously Estimated
By
Jacob Haqq-Misra
An everything bagel for the brain. Substantive, layered, well-seasoned.
Summary
This article presents new three-dimensional climate model calculations that predict a longer lifetime for Earth's vegetative biosphere than previous one-dimensional models suggested. The research examines steady-state climates at various future intervals by modeling increasing solar insolation and decreasing CO2 mixing ratios. The key finding is that earlier one-dimensional models overestimated warming effects when the solar constant increases, meaning Earth's biosphere may survive longer than previously thought. Some land and aquatic plants could potentially persist further into the Sun's brightening future than earlier estimates indicated.
Key quotes
· 4 pulledWe use a three-dimensional model to calculate steady-state climates at various intervals in Earth's future, across a parameter space of increasing insolation and decreasing CO2 mixing ratio.
Comparison with prior results shows an overestimation of warming by one-dimensional models when solar constant is increased.
We present new three-dimensional model calculations that predict a longer lifetime for Earth's biosphere than previous one-dimensional models
We suggest that some land and aquatic plants could survive longer than previously estimated.
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