Mark Clifford Serreze (born 1960) is an American geographer and the director (since 2009[1]) of the National Snow and Ice Data Center (NSIDC), a project of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder.

[2] Serreze is primarily known for his expertise in the Arctic sea ice decline that has occurred over the last few decades due to global warming, a topic about which he has expressed serious concern.

Serreze grew up in Maine, and credits its frequent snowy weather as an inspiration for his interest in studying ice.

[5] Serreze became well known in 2008 when he described the state of Arctic sea ice as being in a "death spiral", and said it could disappear in the summers within several decades.

[8] Serreze is a keyboardist, singer, and songwriter for the rock band The Hobbled Neurons, which released the album "Einstein's Bender" in 2023.