Editing Subduction (section)

=== Arc-continent collision and global climate ===
In their 2019 study, Macdonald et al. proposed that arc-continent collision zones and the subsequent [[obduction]] of oceanic lithosphere was at least partially responsible for controlling global climate. Their model relies on arc-continent collision in tropical zones, where exposed [[ophiolite]]s composed mainly of mafic material increase "global weatherability" and result in the storage of carbon through silicate weathering processes. This storage represents a [[carbon sink]], removing carbon from the atmosphere and resulting in global cooling. Their study correlates several [[Phanerozoic]] ophiolite complexes, including active arc-continent subduction, with known global cooling and glaciation periods.<ref>{{Cite journal |last1=Macdonald |first1=Francis A. |last2=Swanson-Hysell |first2=Nicholas L. |last3=Park |first3=Yuem |last4=Lisiecki |first4=Lorraine |last5=Jagoutz |first5=Oliver |date=2019 |title=Arc-continent collisions in the tropics set Earth's climate state |journal=Science |volume=364 |issue=6436 |pages=181–184 |doi=10.1126/science.aav5300 |pmid=30872536 |bibcode=2019Sci...364..181M |s2cid=78094267 |issn=0036-8075|doi-access=free }}</ref> This study does not discuss [[Milankovitch cycles]] as a driver of global climate cyclicity.