Seismology, the science of elastic waves and their sources, is perhaps best known for imaging the planet’s interior and for its central role in the monitoring, assessment, and science of earthquakes. However, humanity’s extraordinarily sensitive global seismic sensors also record an immense quantity and variety of non-earthquake related signals. This rich background field of seismic waves reflects forces arising from a diversity of processes occurring across our dynamic planet. This talk will address how long-term and long-range observations of Earth’s background seismic waves reveal interconnected processes of the atmosphere, cryosphere, oceans, and solid Earth within the multi-decade and continually accruing seismic record. Examples presented will include recent seismologically driven discoveries on the stability Antarctica’s vast glacial systems, in global signals from large volcanic eruptions, and how climate change is reflected in and quantified by seismic signals originating and/or propagating within the oceans.