Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860-2000 AD

Kaspari SD, Schwikowski M, Gysel M, Flanner MG, Kang S, Hou S & Mayewski PA
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Kaspari, S. D., Schwikowski, M., Gysel, M., Flanner, M. G., Kang, S., Hou, S., & Mayewski, P. A. (2011). Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860-2000 AD. Geophysical Research Letters, 38(4), L04703. https://doi.org/10.1029/2010GL046096