Search Results - "Douglas, Peter M. J"

Pronounced zonal heterogeneity in Eocene southern high-latitude sea surface temperatures by Douglas, Peter M. J., Affek, Hagit P., Ivany, Linda C., Houben, Alexander J. P., Sijp, Willem P., Sluijs, Appy, Schouten, Stefan, Pagani, Mark

“…Paleoclimate studies suggest that increased global warmth during the Eocene epoch was greatly amplified at high latitudes, a state that climate models cannot…”
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Drought, agricultural adaptation, and sociopolitical collapse in the Maya Lowlands by Douglas, Peter M. J., Pagani, Mark, Canuto, Marcello A., Brenner, Mark, Hodell, David A., Eglinton, Timothy I., Curtis, Jason H.

“…Significance The Terminal Classic decline of the Maya civilization represents a key example of ancient societal collapse that may have been caused by climate…”
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Volcanic Diffuse Volatile Emissions Tracked by Plant Responses Detectable From Space by Bogue, Robert R., Douglas, Peter M. J., Fisher, Joshua B., Stix, John

“…Volcanic volatile emissions provide information about volcanic unrest but are difficult to detect with satellites. Volcanic degassing affects plants by…”
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Palmitic Acid Is Not a Proper Salinity Proxy in Baffin Bay and the Labrador Sea but Reflects the Variability in Organic Matter Sources Modulated by Sea Ice Coverage by Allan, Estelle, Douglas, Peter M. J., de Vernal, Anne, Gélinas, Yves, Mucci, Alfonso O.

“…Abstract Palmitic acid (PA) is ubiquitous in the biosphere and its hydrogen isotopic composition (δ 2 H PA ) was proposed as a potential paleoenvironmental…”
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Permafrost degradation and soil erosion as drivers of greenhouse gas emissions from tundra ponds by Prėskienis, Vilmantas, Fortier, Daniel, Douglas, Peter M J, Rautio, Milla, Laurion, Isabelle

“…Abstract Climate change poses a serious threat to permafrost integrity, with expected warmer winters and increased precipitation, both raising permafrost…”
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Geographic variability in freshwater methane hydrogen isotope ratios and its implications for global isotopic source signatures by Douglas, Peter M. J, Stratigopoulos, Emerald, Park, Sanga, Phan, Dawson

“…There is growing interest in developing spatially resolved methane (CH4) isotopic source signatures to aid in geographic source attribution of CH4 emissions…”
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A long-term decrease in the persistence of soil carbon caused by ancient Maya land use by Douglas, Peter M. J., Pagani, Mark, Eglinton, Timothy I., Brenner, Mark, Curtis, Jason H., Breckenridge, Andy, Johnston, Kevin

“…The long-term effects of deforestation on tropical forest soil carbon reservoirs are important for estimating the consequences of land use on the global carbon…”
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Using carbon-14 and carbon-13 measurements for source attribution of atmospheric methane in the Athabasca oil sands region by Gonzalez Moguel, Regina, Vogel, Felix, Ars, Sébastien, Schaefer, Hinrich, Turnbull, Jocelyn C, Douglas, Peter M. J

“…The rapidly expanding and energy-intensive production from the Canadian oil sands, one of the largest oil reserves globally, accounts for almost 12 % of…”
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The role of ocean gateways on cooling climate on long time scales by Sijp, Willem P., von der Heydt, Anna S., Dijkstra, Henk A., Flögel, Sascha, Douglas, Peter M.J., Bijl, Peter K.

“…We examine ocean changes in response to changes in paleogeography from the Cretaceous to present in an intermediate complexity model and in the fully coupled…”
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High rates of marine organic carbon burial on the southwest Greenland margin induced by Neoglacial advances by Wang, Yunfeng, Gélinas, Yves, de Vernal, Anne, Mucci, Alfonso O, Allan, Estelle, Seidenkrantz, Marit-Solveig, Douglas, Peter M. J

“…Marine sediments in glacially-carved fjords at high latitudes feature high organic carbon (OC) burial rates, but there are fewer data on the role of glacial…”
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Methods and future directions for paleoclimatology in the Maya Lowlands by Douglas, Peter MJ, Brenner, Mark, Curtis, Jason H

“…A growing body of paleoclimate data indicates that periods of severe drought affected the Maya Lowlands of southeastern Mexico and northern Central America,…”
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Planning for the Lake Izabal Basin Research Endeavor (LIBRE) continental scientific drilling project in eastern Guatemala by Obrist-Farner, Jonathan, Eckert, Andreas, Douglas, Peter M. J, Perez, Liseth, Correa-Metrio, Alex, Konecky, Bronwen L, Bauersachs, Thorsten, Zimmerman, Susan, Scheidt, Stephanie, Brenner, Mark, Kutterolf, Steffen, Maurer, Jeremy, Flores, Omar, Burberry, Caroline M, Noren, Anders, Myrbo, Amy, Lachniet, Matthew, Wattrus, Nigel, Gibson, Derek

“…As Earth's atmospheric temperatures and human populations increase, more people are becoming vulnerable to natural and human-induced disasters. This is…”
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The influence of tropical Atlantic sea-surface temperatures and the North Atlantic Subtropical High during the Maya Droughts by Gibson, Derek K, Obrist-Farner, Jonathan, Birkett, Brooke A, Curtis, Jason H, Berke, Melissa A, Douglas, Peter MJ, Rice, Prudence M, Maurer, Jeremy

“…The frequency and duration of Late-Holocene hydrologic extremes in northern Guatemala were investigated using multiple sedimentological and geochemical proxies…”
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Preclassic environmental degradation of Lake Petén Itzá, Guatemala, by the early Maya of Nixtun-Ch’ich by Birkett, Brooke A., Obrist-Farner, Jonathan, Rice, Prudence M., Parker, Wesley G., Douglas, Peter M. J., Berke, Melissa A., Taylor, Audrey K., Curtis, Jason H., Keenan, Benjamin

“…Abstract Paleolimnological evidence indicates the ancient Maya transformed terrestrial ecosystems by felling forest vegetation to construct large…”
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Diapiric controls on deep-biosphere oases: Take with a grain of salt by Jautzy, Josué J, Campbell, Calvin, Desiage, Pierre-Arnaud, Douglas, Peter M J, Fosu, Benjamin R, Larmagnat, Stéphanie, Savard, Martine M

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Understanding controls on stanols in lake sediments as proxies for palaeopopulations in Mesoamerica by Keenan, Benjamin, Imfeld, Anic, Gélinas, Yves, Douglas, Peter M. J.

“…Faecal stanols in lake sediments have been used as a proxy for human populations in the past in a variety of contexts, with the assumption that variability in…”
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Seasonal patterns in greenhouse gas emissions from lakes and ponds in a High Arctic polygonal landscape by Prėskienis, Vilmantas, Laurion, Isabelle, Bouchard, Frédéric, Douglas, Peter M. J., Billett, Michael F., Fortier, Daniel, Xu, Xiaomei

“…Lakes and ponds can be hotspots for CO2 and CH4 emissions, but Arctic studies remain scarce. Here we present diffusive and ebullition fluxes collected over…”
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Clumped Isotopes Link Older Carbon Substrates With Slower Rates of Methanogenesis in Northern Lakes by Douglas, Peter M. J., Gonzalez Moguel, Regina, Walter Anthony, Katey M., Wik, Martin, Crill, Patrick M., Dawson, Katherine S., Smith, Derek A., Yanay, Ella, Lloyd, Max K., Stolper, Daniel A., Eiler, John M., Sessions, Alex L.

“…The release of long‐stored carbon from thawed permafrost could fuel increased methanogenesis in northern lakes, but it remains unclear whether old carbon…”
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Impacts of Climate Change on the Collapse of Lowland Maya Civilization by Douglas, Peter M.J, Demarest, Arthur A, Brenner, Mark, Canuto, Marcello A

“…Paleoclimatologists have discovered abundant evidence that droughts coincided with collapse of the Lowland Classic Maya civilization, and some argue that…”
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Radiocarbon Data Reveal Contrasting Sources for Carbon Fractions in Thermokarst Lakes and Rivers of Eastern Canada (Nunavik, Quebec) by Gonzalez Moguel, Regina, Bass, Adrian M., Garnett, Mark H., Pilote, Martin, Keenan, Benjamin, Matveev, Alex, Douglas, Peter M. J.

“…Greenhouse gas emissions from permafrost organic carbon decomposition in lakes and rivers can accelerate global warming. We used radiocarbon (14C) measurements…”
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