qThe uplifting weathering hypothesis asserts that the global
mean rate of chemical weathering is heavily affected by the availability of
fresh rock and mineral surfaces that the weathering process can attack.
qThis hypothesis suggests that tectonic uplifting enhances
the exposure of freshly fragmented rock which is an important factor in the intensity
of chemical weathering.
qThis hypothesis looks at chemical weathering as the active
driver of climate change, rather than as a negative feedback that moderates climate changes.