Ph.D. Environmental Science, University of Auckland, NZ (Thesis: The Late Quaternary palaeoclimate record in kauri tree rings)  MSc. Geological Sciences, University of Maine USA (Thesis: Surficial deposits and distribution of patterned ground on a debris-covered glacier surface in Mullins Valley and Beacon Valley, Antarctica)  BA Earth Sciences, Boston University USA
Drew joined NIWA in 2007 and uses a diverse background in climate science, environmental science and geology to improve understanding of the global climate system. He leads the NIWA Climate Present and Past project that has achieved hundreds of scientific outputs since 2009, including a dendroclimatology lab and ancient kauri archive based at NIWA. Drew is a co-lead of the Southern Hemisphere Assessment of PalaeoEnvironments (SHAPE) focus group supported by the International Quaternary Union (INQUA). Drew’s current research focuses on integrating different lines of surface climate evidence in modern analog models to establish how Southern Hemisphere atmospheric circulation processes contributed to past climate variability and change.