Crockford's work explores the coevolution of life and the surface environment throughout Earth history. Examples of key questions that guide his research include: how much life has ever existed on the planet? What caused dramatic shifts in climate (i.e., snowball Earth glaciations) at the beginni...
Crockford's work explores the coevolution of life and the surface environment throughout Earth history. Examples of key questions that guide his research include: how much life has ever existed on the planet? What caused dramatic shifts in climate (i.e., snowball Earth glaciations) at the beginning and end of the Proterozoic eon? And how can we extract meaningful information about ancient seawater chemistry from highly altered sedimentary records? To help provide answers to these and many other questions his work combines isotope geochemistry, geobiology, field geology and insights from modern chemical oceanography.