I'm a paleoclimatologist at the University of Massachusetts Amherst. I study how tropical rainfall changed in the past and what changes in the climate system cause periods of droughts and periods of wetter conditions. To do this I use stalagmite geochemistry, using the changing chemical composition of layers of stalagmite calcite formed from falling dripwater over thousands of years as a record of how rainfall changed above the cave. I've worked in field areas across the world including Indonesia, Australia, Madagascar and the Dominican Republic. I started out with a Geology degree at the University of Oxford, did my PhD at The Australian National University and am now a postdoc at the University of Massachusetts Amherst.