All Publications in Full CV


Some Links to Recent Publications

Nature Sustainability Community – Southern California Wildfires 2022

Geographic Patterns of the Pandemic in the United States: Covid-19 Response Within a Disunified Federal System 2021

AAG Annals – Climate, Capital, Conflict: Geographies of Success or Failure in the Twenty-First Century October 2020

Geophysical Research Letters – Vegetation Responses to 2012–2016 Drought in Northern and Southern California

Sacramento Bee Op/Ed on Marshes February 2018

AAG President’s Column – Long, Hot Summer October 2016

AAG President’s Column – The World of the City September 2016

California Drought Study From Kirman Lake – reports

AAG President’s Column – Geographies of Bread and Water August 2016

AAG President’s – The End(s) of Geography July 2016

Yale 360 Beyond the Perfect Drought 

AMBIO Paper on Science and Water Policy 

San Francisco Chronicle Op/Ed on John Muir and the City

Zocalo on The Future on Muir’s Legacy  and the City

The AAG Newsletter on Muir and Geography

Boom Article  on John Muir in the 21st Century

Popular/General Articles

MacDonald, G.M and Dong, C. 2022. Southern California’s Wildfire Threat Grows Worse as the Century Progresses. Nature Sustainability Community.

MacDonald, G.M.  2015. Beyond the Perfect Drought.  Yale Environment 360

MacDonald, G.M. 2014. The Next John Muir is Chasing Butterflies in the Heart of L.A. – The Conservationists of the 21st Century will be City Kids. Zocalo December 24.

MacDonald, G.M. 2014. John Muir. Boom: A Journal of California, Vol. 4, No. 3 (Fall 2014), pp. 60-69.

MacDonald, G.M. 2013. The Myth of a Desert Metropolis: Los Angeles was not built in a desert, but are we making it one? Boom: A Journal of California, Vol. 3, No. 3 (Fall 2013), pp. 86-94.

MacDonald, G.M. 2013 Yosemite fire puts San Francisco on the front lines. San Francisco Chronicle August 30, 2013

MacDonald, G.M. 2012. Los Angeles Water – Myths, Miracles, Mayhem and William Mulholland AAG Newsletter 47: 11-13.

MacDonald, G.M. 2012 Climate-change denial getting harder to defend. Los Angeles Times October 4, 2012

MacDonald, G.M. 2009 Misreading climategate Op/Ed Los Angeles Times December 9, 2009

MacDonald, G.M. 2009 Super-drought in the Southwest. Muse Magazine May-June, 26-31

MacDonald, G.M. 2007 hot and dry for decades Op/Ed Los Angeles Times July 13, 2007

Some Recent Peer-Reviewed Journal Articles

Dong, C., Williams, A.P., Abatzoglou, J.T., Lin, K., Okin, G.S., Gillespie, T.W., Long, D., Lin, Y.H., Hall, A. and MacDonald, G.M., 2022. The season for large fires in Southern California is projected to lengthen in a changing climate. Communications Earth & Environment, 3(1), pp.1-9.

MacDonald, G.,  2021. Climate Change: Geography’s Debt and Geography’s Dilemma, The Professional Geographer, DOI: 10.1080/00330124.2021.1915815

Fard, E., Brown, L.N., Lydon, S., Smol, J.P. and MacDonald, G.M., 2021. High-resolution sedimentological and geochemical records of three marshes in San Francisco Bay, California. Quaternary International.

Glover, K.C., George, J., Heusser, L. and MacDonald, G.M., 2021. West Coast vegetation shifts as a response to climate change over the past 130,000 years: geographic patterns and process from pollen data. Physical Geography, 42(6), pp.542-560.

Holmquist, J.R., Brown, L.N. and MacDonald, G.M., 2021. Localized Scenarios and Latitudinal Patterns of Vertical and Lateral Resilience of Tidal Marshes to Sea‐Level Rise in the Contiguous United States. Earth’s Future, p.e2020EF001804.

Leidelmeijer, J.A., Kirby, M.E., MacDonald, G., Carlin, J.A., Avila, J., Han, J., Nauman, B., Loyd, S., Nichols, K. and Ramezan, R., 2021. Younger Dryas to early Holocene (12.9 to 8.1 ka) limnological and hydrological change at Barley Lake, California (northern California Coast Range). Quaternary Research, pp.1-15.

MacDonald, G. 2021. Geographic Patterns of the Pandemic in the United States: Covid-19 Response Within a Disunified Federal System. Coronavirus (COVID-19) Outbreaks, Environment and Human Behaviour: International Case Studies, Springer. 451-467.

Glover, K.C., Chaney, A., Kirby, M.E., Patterson, W.P. and MacDonald, G.M., 2020. Southern California vegetation, wildfire, and erosion had nonlinear responses to climatic forcing during Marine Isotope Stages 5–2 (120–15 ka). Paleoceanography and Paleoclimatology 35, p.e2019PA003628.

Harden, C.P., Luzzadder-Beach, S., MacDonald, G.M., Marston, R.A. and Winkler, J.A., 2020. Physical geography contributes. Progress in Physical Geography.

Hugelius, G., Loisel, J., Chadburn, S., Jackson, R.B., Jones, M., MacDonald, G., Marushchak, M., Olefeldt, D., Packalen, M., Siewert, M.B. and Treat, C., 2020. Large stocks of peatland carbon and nitrogen are vulnerable to permafrost thaw. Proceedings of the National Academy of Sciences, 117(34), pp.20438-20446.

MacDonald, G., 2020. Climate, Capital, Conflict: Geographies of Success or Failure in the Twenty-First Century. Annals of the American Association of Geographers, 1-21.

Thomson, M.J. and MacDonald, G.M., 2020. Climate and growing season variability impacted the intensity and distribution of Fremont maize farmers during and after the Medieval Climate Anomaly based on a statistically downscaled climate model. Environmental Research Letters 15

Glover, K.C., Chaney, A., Kirby, M.E., Patterson, W.P. and MacDonald, G.M., 2020. Southern California vegetation, wildfire, and erosion had nonlinear responses to climatic forcing during Marine Isotope Stages 5–2 (120–15 ka). Paleoceanography and Paleoclimatology 35, p.e2019PA003628.

Avnaim-Katav, S., Almogi-Labin, A., Schneider-Mor, A., Crouvi, O., Burke, A.A., Kremenetski, K.V. and MacDonald, G.M., 2019. A multi-proxy shallow marine record for Mid-to-Late Holocene climate variability, Thera eruptions and cultural change in the Eastern Mediterranean. Quaternary Science Reviews 204, 133-148.

Dong, C., MacDonald, G.M., Willis, K., Gillespie, T.W., Okin, G.S. and Williams, A.P., 2019. Vegetation Responses to 2012‐2016 Drought in Northern and Southern California. Geophysical Research Letters 46, 3810-3821.

Rosencranz, J.A., Thorne, K.M., Buffington, K.J., Overton, C.T., Takekawa, J.Y., Casazza, M.L., McBroom, J., Wood, J.K., Nur, N., Zembal, R.L. and MacDonald, G.M., 2019. Rising Tides: Assessing Habitat Vulnerability for an Endangered Salt Marsh-Dependent Species with Sea-Level Rise. Wetlands 2019, 1-16.

Thomson, M.J., Balkovič, J., Krisztin, T. and MacDonald, G.M., 2019. Simulated impact of paleoclimate change on Fremont Native American maize farming in Utah, 850–1449 CE, using crop and climate models. Quaternary International, 507, 95-107.

Thorne, K., MacDonald, G., Guntenspergen, G.,  Ambrose, R.,  Buffington, K., Dugger, B., Freeman, C., Janousek, C., Brown, L.,  Rosencranz, J., Holmquist, J.,  Smol, J., Hargan, K. and Takekawa, J.  2018. U.S. Pacific coastal wetland resilience and vulnerability to sea-level rise. Science Advances. Vol. 4, no. 2, eaao3270 DOI: 10.1126/sciadv.aao3270

James R. Holmquist, Lisamarie Windham-Myers, Norman Bliss, Stephen Crooks, James T. Morris, J. Patrick Megonigal, Tiffany Troxler, Donald Weller, John Callaway, Judith Drexler, Matthew C. Ferner, Meagan E. Gonneea, Kevin D. Kroeger, Lisa Schile-Beers, Isa Woo, Kevin Buffington, Joshua Breithaupt, Brandon M. Boyd, Lauren N. Brown, Nicole Dix, Lyndie Hice, Benjamin P. Horton, Glen M. MacDonald, Ryan P. Moyer, William Reay, Timothy Shaw, Erik Smith, Joseph M. Smoak, Christopher Sommerfield, Karen Thorne, David Velinsky, Elizabeth Watson, Kristin Wilson Grimes & Mark 2018. Accuracy and precision of tidal wetland soil carbon mapping in the conterminous United States. Reports 8, 9478.

Vollmer, D., Shaad, K., Souter, N.J., Farrell, T., Dudgeon, D., Sullivan, C.A., Fauconnier, I., MacDonald, G.M., McCartney, M.P., Power, A.G. and McNally, A., 2018. Integrating the social, hydrological and ecological dimensions of freshwater health: The Freshwater Health Index. Science of the Total Environment, 627, 304-313.

Gillespie, T. W., Ostermann-Kelm, S.,  Dong, C., Willis, K.S., Okin, G.S. and MacDonald, G.M. 2018. Monitoring changes of NDVI in protected areas of southern California. Ecological Indicators, 88, 485-494.

Okin, G.S., Dong, C., Willis, K.S., Gillespie, T.W. and MacDonald, G.M., 2018. The Impact of Drought on Native Southern California Vegetation: Remote Sensing Analysis Using MODIS‐Derived Time Series. Journal of Geophysical Research: Biogeosciences  123, 1927-1939.

Rosencranz, J.A., Thorne, K.M., Buffington, K.J., Takekawa, J.Y., Hechinger, R.F., Stewart, T.E., Ambrose, R.F., MacDonald, G.M., Holmgren, M.A., Crooks, J.A. and Patton, R.T., 2018. Sea‐level rise, habitat loss, and potential extirpation of a salt marsh specialist bird in urbanized landscapes. Ecology and Evolution 8, 8115-8125.

Gallego-Sala AV, Charman DJ, Brewer S, Page SE, Prentice IC, Friedlingstein P, Moreton S, Amesbury MJ, Beilman DW, Björck S, Blyakharchuk T, Bochicchio C, Booth RK, Bunbury J, Camill P, Carless D, Chimner RA, Clifford M, Cressey E, Courtney-Mustaphi C, De Vleeschouwer F, de Jong R, Fialkiewicz-Koziel B, Finkelstein SA, Garneau M, Githumbi E, Hribjlan J, Holmquist J, Hughes PDM, Jones C, Jones MC, Karofeld E, Klein ES, Kokfelt U, Korhola A, Lacourse T, Le Roux G, Lamentowicz M, Large D, Lavoie M, Loisel J, Mackay H, MacDonald GM, Makila M, Magnan G, Marchant R, Marcisz K, Martínez Cortizas A, Massa C, Mathijssen P, Mauquoy D, Mighall T, Mitchell FJG, Moss P, Nichols J, Oksanen PO, Orme L, Packalen MS, Robinson S, Roland TP, Sanderson NK, Sannel ABK, Silva-Sánchez N, Steinberg N, Swindles GT, Turner TE, Uglow J, Väliranta M, van Bellen S, van der Linden M, van Geel B, Wang G, Yu Z, Zaragoza-Castells J & Zhao Y. 2018. Latitudinal limits to the predicted increase of the peatland carbon sink with warming. Nature Climate Change 8, 907–913.

Wang, J., Song, C., Reager, J.T., Yao, F., Famiglietti, J.S., Sheng, Y., MacDonald, G.M., Brun, F., Schmied, H.M., Marston, R.A. and Wada, Y., 2018. Recent global decline in endorheic basin water storages. Nature Geoscience, 11, p.926-932.

Avnaim-Katav, S., Gehrels, W.R., Brown, L.N., Fard, E. and MacDonald, G.M., 2017. Distributions of salt-marsh foraminifera along the coast of SW California, USA: Implications for sea-level reconstructions. Marine Micropaleontology, 131, 25-43

Gillespie, T.W., Willis, K.S., Ostermann-Kelm, S., Longcore, T., Federico, F., Lee, L. and MacDonald, G.M., 2017. Inventorying and Monitoring Nighttime Light Distribution and Dynamics in the Mediterranean Coast Network of Southern California. Natural Areas Journal, 37, 350-360.

Glover, K.C., MacDonald, G.M., Kirby, M.E., Rhodes, E.J., Stevens, L., Silveira, E., Whitaker, A. and Lydon, S., 2017. Evidence for orbital and North Atlantic climate forcing in alpine Southern California between 125 and 10 ka from multi-proxy analyses of Baldwin Lake. Quaternary Science Reviews, 167, 47-62

Leeper, R., Rhodes, B., Kirby, M., Scharer, K., Carlin, J., Hemphill-Haley, E., Avnaim-Katav, S., MacDonald, G., Starratt, S. and Aranda, A., 2017. Evidence for coseismic subsidence events in a southern California coastal saltmarsh. Reports, 7. 44615. doi:  10.1038/srep44615

Loisel J, MacDonald GM, Thomson MJ (2017) Little Ice Age climatic erraticism as an analogue for future enhanced hydroclimatic variability across the American Southwest. PLoS ONE 12(10): e0186282.

MacDonald, G.M., 2017. The new nature: Limitations and prospects of the paleoenvironmental tradition in biogeography in the 21st century. The Canadian Geographer/Le Géographe canadien, 61, 41-51.

Rosencranz, J.A., Brown, L.N., Holmquist, J.R., Sanchez, Y., MacDonald, G.M. and Ambrose, R.F., 2017. The Role of Sediment Dynamics for Inorganic Accretion Patterns in Southern California’s Mediterranean-Climate Salt Marshes. Estuaries and Coasts,40, 1-14.

MacDonald, G. M., Moser, K.A., Bloom, A. M., Potito, A.P., Porinchu, D.F., Holmquist, J.R., Hughes, J. and Kremenetski, K.V. 2016. Prolonged California aridity linked to climate warming and Pacific sea surface temperature. Nature.Com/Sci. Rep. 6, 33325;  

Holmquist, J.R., Finkelstein, S.A., Garneau, M., Massa, C., Yu, Z. and MacDonald, G.M., 2016. A comparison of radiocarbon ages derived from bulk peat and selected plant macrofossils in basal peat cores from circum-arctic peatlands. Quaternary Geochronology, 31, pp.53-61.

Holmquist, J. R., Booth, R. K., & MacDonald, G. M. (2015). Boreal Peatland Water Table Depth and Carbon Accumulation During the Holocene Thermal Maximum, Roman Warm Period, and Medieval Climate Anomaly. Palaeogeography, Palaeoclimatology, Palaeoecology 444, 15-27.

Rosencranz, J.A., Ganju, N.K., Ambrose, R.F., Brosnahan, S.M., Dickhudt, P.J., Guntenspergen, G.R., MacDonald, G.M., Takekawa, J.Y. and Thorne, K.M., 2015. Balanced Sediment Fluxes in Southern California’s Mediterranean-Climate Zone Salt Marshes. Estuaries and Coasts, pp.1-15.

Philben, M., Holmquist, J., MacDonald, G., Duan, D., Kaiser, K. and Benner, R. 2015. Temperature, oxygen, and vegetation controls on decomposition in a James Bay peatland, Global Biogeochemical Cycles, 29, 729–743. doi:10.1002/2014GB004989.

Willis, K. S., Beilman, D., Booth, R. K., Amesbury, M., Holmquist, J., & MacDonald, G. 2015. Peatland paleohydrology in southern West Siberian Lowlands: Comparison of multiple testate amoeba transfer functions, sites, and Sphagnum δ13C values. The Holocene, DOI: 10.1177/0959683615585833.

Holmquist, J. R., Reynolds, L., Brown, L. N., Southon, J. R., Simms, A. R., & MacDonald, G. M. 2015. Marine radiocarbon reservoir values in Southern California estuaries: Interspecies, latitudinal, and interannual variability. Radiocarbon, 57, 449–458 DOI: 10.2458/azu_rc.57.18389.

Armitage, D., de Loë, R. C., Morris, M., Edwards, T. W., Gerlak, A. K., Hall, R. I., Huitema, D., Ison, R., Livingstone, D., MacDonald, G., Mirumachi, N., Plummer R Wolfe, B. B. 2015. Science–policy processes for transboundary water governance. Ambio 2015, 1-14. DOI 10.1007/s13280-015-0644-x

Hargan, Kathryn E., Kathleen M. Rühland, Andrew M. Paterson, James Holmquist, Glen M. MacDonald, Joan Bunbury, Sarah A. Finkelstein, and John P. Smol. 2015. Long-term successional changes in peatlands of the Hudson Bay Lowlands, Canada inferred from the ecological dynamics of multiple proxies. The Holocene 25, no. 1: 92-107.

Hargan, K.E., K.M. Rühland, A.M. Paterson, S.A. Finkelstein, J. Holmquist, G.M. MacDonald, W. Keller, and J.P. Smol. 2015. The influence of water table depth and pH on the spatial distribution of diatom species in peatlands of the Boreal Shield and Hudson Plains, Canada. Botany 93, 57-74. DOI:10.1139/cjb-2014-0138.

Zhang,Z., Y. Xue, G. MacDonald, P. M. Cox, and G. J. Collatz. 2015. Investigation of North American vegetation variability under recent climate: A study using the SSiB4/TRIFFID biophysical/dynamic vegetation model, Journal of Geophysical Research: Atmosphere 120, doi:10.1002/2014JD021963.

Reinemann, S. A., Porinchu, D. F., MacDonald, G. M., Mark, B. G., & DeGrand, J. Q. 2014. A 2000-yr reconstruction of air temperature in the Great Basin of the United States with specific reference to the Medieval Climatic Anomaly. Quaternary Research, 82(2), 309-317.

Julie Loisel, Zicheng Yu, David W Beilman, Philip Camill, Jukka Alm, Matthew J Amesbury, David Anderson, Sofia et al. (INCLUDING MacDonald) 2014. A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation. The Holocene DOI 0959683614538073.

Holmquist, J. R. and MacDonald, G.M.. 2014. Peatland succession and long-term apparent carbon accumulation in central and northern Ontario, Canada. The Holocene 24, 1075-1089.

Buermann, W., Parida, B., Jung, M., MacDonald, G.M., Tucker, C.J. and Reichstein, M. 2014, Recent shift in Eurasian boreal forest greening response may be associated with warmer and drier summers, Geophysical Research. Letters 41, 1995–2002, doi:10.1002/2014GL059450.

Holmquist, J.R., MacDonald, G.M., Gallego-Sala, A.V. 2014. Peatland Initiation, Carbon Accumulation, and 2 ka Depth in the James Bay Lowland and Adjacent Regions. Arctic, Antarctic, and Alpine Research, 46(1), 19-39

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