This chapter presents two embedded musical compositions drawn from various environmental climate data, offering listeners a stark audio-perspective on the impacts of humans on the climate system over the past century. The first, Ice Core Walk, is a musical representation of temperature and CO2 data taken from the 3 km-long Vostok ice core in East Antarctica. The second is a clip taken from Earth Symphony, which draws on a wide range of Earth System data sets, and which ‘sonifies’ the data into a musical score by creating a process in which music is performed directly by the data.