Matthew Lachniet (Geoscience) was featured in the December 2015 issue of National Geographic Espana. The piece was about previous work that Lachniet conducted using a 2,400-year-old stalagmite from a cave in southwestern Mexico. The research describes how the rise and fall of the ancient pyramid city of Teotihuacan and other Mesoamerican civilizations were linked to the region's climate change. The stalagmite allowed Lachniet to establish a detailed rainfall record for the region.