As climate change is warming our planet, the ice in Earth's cryosphere is melting - from glaciers to mountain top patches to permafrost. An unexpected result of this melting has been the discovery of artefacts that were long preserved in the ice's depths. Tools, clothing and, perhaps most remarkable, human bodies have been revealed at the edges the retreating ice. Examining these discoveries, along with traces of plants and animals also melting out of the ice, is the work of researchers in a brand-new scientific field called glacial archaeology.