William Ruddiman
American palaeoclimatologist and professor
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Earth Sciences
William Ruddiman's Degrees
- PhD Geology Columbia University
- Masters Geology Columbia University
- Bachelors Geology Williams College
Why Is William Ruddiman Influential?
(Suggest an Edit or Addition)According to Wikipedia, William F. Ruddiman is a palaeoclimatologist and Professor Emeritus at the University of Virginia. Ruddiman earned an undergraduate degree in geology in 1964 at Williams College, and a Ph.D. in marine geology from Columbia University in 1969. Ruddiman worked at the US Naval Oceanographic Office from 1969 to 1976, and at Columbia's Lamont–Doherty Earth Observatory from 1976 to 1991. He moved to Virginia in 1991, serving as a professor in Environmental Sciences. Ruddiman's research interests center on climate change over several time scales. He is a Fellow of both the Geological Society of America and the American Geophysical Union. Ruddiman has participated in 15 oceanographic cruises, and was co-chief of two deep-sea drilling cruises.
William Ruddiman's Published Works
Published Works
- Tectonic forcing of late Cenozoic climate (1992) (1900)
- Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China (2002) (1432)
- The Anthropogenic Greenhouse Era Began Thousands of Years Ago (2003) (1279)
- Global Climates: since the Last Glacial Maximum (1994) (1039)
- Influence of late Cenozoic mountain building on ocean geochemical cycles (1988) (802)
- Pleistocene evolution: Northern hemisphere ice sheets and North Atlantic Ocean (1989) (799)
- The North Atlantic Ocean during the last deglaciation (1981) (734)
- Forcing of late Cenozoic northern hemisphere climate by plateau uplift in southern Asia and the American west (1989) (688)
- Late Pliocene variation in northern hemisphere ice sheets and North Atlantic deep water circulation (1989) (562)
- Holocene carbon emissions as a result of anthropogenic land cover change (2011) (506)
- Late Quaternary deposition of ice-rafted sand in the subpolar North Atlantic (lat 40° to 65°N) (1977) (470)
- Matuyama 41,000-year cycles: North Atlantic Ocean and northern hemisphere ice sheets (1986) (466)
- Shaping of the Continental Rise by Deep Geostrophic Contour Currents (1966) (457)
- Tectonic uplift and climate change (1997) (428)
- Sensitivity of climate to late Cenozoic uplift in southern Asia and the American west: Numerical experiments (1989) (423)
- The Last Interglacial Ocean (1984) (382)
- North America and Adjacent Oceans During the Last Deglaciation (1987) (372)
- 13C Record of Benthic Foraminifera in the Last Interglacial Ocean: Implications for the Carbon Cycle and the Global Deep Water Circulation (1984) (364)
- Evolution of Atlantic―Pacific δ13C gradients over the last 2.5 m.y. (1990) (359)
- Oceanic mechanisms for amplification of the 23,000-year ice-volume cycle. (1981) (329)
- Earth's climate : past and future (2000) (322)
- Vertical Mixing of Ice-Rafted Volcanic Ash in North Atlantic Sediments (1972) (288)
- The impact of cold North Atlantic sea surface temperatures on climate: implications for the Younger Dryas cooling (11–10 k) (1986) (274)
- Surface water response of the equatorial Atlantic Ocean to orbital forcing (1989) (261)
- Northern Hemisphere climate regimes during the past 3 Ma: possible tectonic connections (1988) (246)
- Orbital insolation, ice volume, and greenhouse gases. (2003) (243)
- Glacial North Atlantic 18,000 Years Ago: A climap Reconstruction (1976) (242)
- Northeast Atlantic Paleoclimatic Changes over the Past 600,000 Years (1976) (236)
- Defining the epoch we live in (2015) (233)
- The early anthropogenic hypothesis: Challenges and responses (2007) (218)
- Southward penetrations of the North Atlantic polar front: faunal and floral evidence of large-scale surface water mass movements over the last 225,000 years (1972) (196)
- Oxygen-Isotope Analyses and Pleistocene Ice Volumes (1984) (190)
- Ice-age thermal response and climatic role of the surface Atlantic Ocean, 40°N to 63°N (1984) (185)
- Late Cenozoic uplift in southern Asia and the American West: Rationale for general circulation modeling experiments (1989) (184)
- INFLUENCES OF HIGH- AND LOW-LATITUDE PROCESSES ON AFRICAN TERRESTRIAL CLIMATE:PLEISTOCENE EOLIAN RECORDS (1993) (181)
- Warmth of the Subpolar North Atlantic Ocean During Northern Hemisphere Ice-Sheet Growth (1979) (180)
- Pleistocene Sedimentation in the Equatorial Atlantic: Stratigraphy and Faunal Paleoclimatology (1971) (153)
- Plateau uplift and climatic change (1991) (152)
- Glacial/Interglacial response rate of subpolar North Atlantic waters to climatic change: the record in oceanic sediments (1977) (148)
- Late Quaternary Paleoceanography of the Tropical Atlantic, 1: Spatial Variability of Annual Mean Sea-Surface Temperatures, 0-20,000 Years B.P. (1986) (147)
- The case for human causes of increased atmospheric CH4 over the last 5000 years (2001) (140)
- Structure and timing of the last deglaciation: Oxygen-isotope evidence☆ (1985) (132)
- Depth of post-depositional remanence acquisition in deep-sea sediments: a case study of the Brunhes-Matuyama reversal and oxygen isotopic Stage 19.1 (1990) (132)
- Effect of per-capita land use changes on Holocene forest clearance and CO2 emissions (2009) (124)
- Geochemistry of Pleistocene ash zones in cores from the North Atlantic (1989) (121)
- Geochemistry of Pleistocene ash zones in cores from the North Atlantic (1989) (121)
- Orbital changes and climate (2006) (119)
- Late Holocene climate: Natural or anthropogenic? (2016) (119)
- What is the timing of orbital-scale monsoon changes? (2006) (118)
- Geology in North America (116)
- A methane-based time scale for Vostok ice (2003) (116)
- How did humans first alter global climate? (2005) (115)
- Early rice farming and anomalous methane trends (2008) (114)
- Late Miocene to Pleistocene Evolution of Climate in Africa and the Low-Latitude Atlantic: Overview of Leg 108 Results (1989) (114)
- Paleoenvironmental Results from North Atlantic Sites 607 and 609 (1987) (110)
- Plows, plagues, and petroleum : how humans took control of climate (2017) (107)
- Sediment Redistribution on the Reykjanes Ridge: Seismic Evidence (1972) (102)
- Late Pleistocene charcoal in tropical Atlantic deep-sea sediments: Climatic and geochemical significance (1996) (98)
- The Uplift-Climate Connection: A Synthesis (1997) (95)
- Differential solution of Planktonic Foraminifera (1967) (90)
- Pliocene-Pleistocene Biogenic and Terrigenous Fluxes at Equatorial Atlantic Sites 662, 663, and 664 (1989) (87)
- Sediment Disturbance and Correlation of Offset Holes Drilled with the Hydraulic Piston Corer: Leg 94 (1987) (86)
- Tropical Atlantic terrigenous fluxes since 25,000 yrs B.P. (1997) (86)
- Can natural or anthropogenic explanations of late-Holocene CO2 and CH4 increases be falsified? (2011) (85)
- Climate model tests of the anthropogenic influence on greenhouse-induced climate change: the role of early human agriculture, industrialization, and vegetation feedbacks (2008) (81)
- North Atlantic sea-surface temperatures for the last 1.1 million years (1986) (80)
- Climatic effects of reduced Arctic sea ice limits in the GISS II general circulation model (1990) (76)
- Late Quaternary surface ocean kinematics and climatic change in the high‐latitude North Atlantic (1977) (74)
- Neotropical human–landscape interactions, fire, and atmospheric CO2 during European conquest (2011) (73)
- Late Cenozoic plateau uplift and climate change (1990) (72)
- Subpolar North Atlantic Circulation at 9300 yr BP: Faunal Evidence (1975) (71)
- Cold climate during the closest Stage 11 analog to recent Millennia (2005) (70)
- Pliocene-Pleistocene Paleoceanography of the North Atlantic at Deep Sea Drilling Project Site 609 (1987) (65)
- Simulating global and local surface temperature changes due to Holocene anthropogenic land cover change (2014) (58)
- Late Quaternary paleoceanography of the tropical Atlantic, 2: The seasonal cycle of sea surface temperatures, 0–20,000 years B.P. (1986) (58)
- Early interglacial bottom-current sedimentation on the eastern Reykjanes Ridge (1976) (56)
- Tests for size and shape dependency in deep-sea mixing (1980) (54)
- Three flaws in defining a formal ‘Anthropocene’ (2018) (52)
- Assessing the Global Meltwater Spike (1982) (51)
- North Atlantic Ice-Rafting: A Major Change at 75,000 Years Before the Present (1977) (51)
- A test of the overdue-glaciation hypothesis (2005) (49)
- Plows, Plagues and Petroleum (2005) (44)
- Severity and speed of Northern Hemisphere glaciation pulses: The limiting case? (1982) (44)
- Initial Reports of the Deep Sea Drilling Project, 94 (1987) (43)
- A Paleoclimatic Enigma? (2010) (41)
- Europe on fire three thousand years ago: Arson or climate? (2015) (41)
- The Early Anthropogenic Hypothesis a Year Later (2005) (41)
- Recent Planktonic Foraminifera: Dominance and Diversity in North Atlantic Surface Sediments (1969) (41)
- Testing the climatic effects of orography and CO2 with general circulation and biome models (1997) (38)
- Introduction to the Uplift-Climate Connection (1997) (37)
- On “The Holocene CO2 rise: Anthropogenic or natural?” (2006) (35)
- The geology of the Caribbean crust, I: Beata Ridge☆ (1970) (34)
- The early anthropogenic hypothesis: A review (2020) (33)
- Climatic Record in North Atlantic Deep-Sea Core V23-82: Comparison of the Last and Present Interglacials Based on Quantitative Time Series (1972) (32)
- The dependence of equilibrium climate sensitivity on climate state: Applications to studies of climates colder than present (2013) (31)
- Geology: Early uplift in Tibet? (1998) (31)
- Northeast Atlantic Post-Eemian Paleooceanography: a Predictive Analog of the Future (1972) (29)
- The role of greenhouse gases in orbital‐scale climatic changes (2004) (29)
- Synthesis; The ocean ice/sheet record (1987) (28)
- Ice-driven CO 2 feedback on ice volume (2006) (28)
- Ice-rafted evidence of long-term North Atlantic circulation (1985) (27)
- Earth's Climate (2000) (26)
- Possible Effects of Cenozoic Uplift and CO2 Lowering on Global and Regional Hydrology (1997) (25)
- Acoustic stratigraphy, structure, and depositional history of the Nicobar Fan, eastern Indian Ocean (1978) (24)
- The fate of nitrogen in the Orbulina universa foraminifera‐symbiont system determined by nitrogen isotope analyses of shell‐bound organic matter (1999) (24)
- Foraminiferal evidence of a modern warming of the North Atlantic Ocean (1970) (23)
- Geographic evidence of the early anthropogenic hypothesis (2017) (23)
- Does pre-industrial warming double the anthropogenic total? (2014) (22)
- An Evaluation of Ocean-Climate Theories on the North Atlantic (1984) (21)
- The role of GCM resolution in simulating glacial inception (2011) (20)
- Introduction to the early-Anthropocene Special Issue (2011) (20)
- The Effects of Uplift on Ocean-Atmosphere Circulation (1997) (20)
- Comparison of Late Pliocene and Late Pleistocene Sea-Surface Temperatures in the Equatorial Atlantic Divergence (1989) (17)
- A Streamlined Foraminiferal Transfer Function for the Subpolar North Atlantic (1987) (16)
- Proceedings of the Ocean Drilling Program, 108 Initial Reports (1988) (16)
- The Anthropocene as an Event, not an Epoch (2022) (15)
- Changes in climate and biota on geologic time scales. (1990) (15)
- A practical solution: the Anthropocene is a geological event, not a formal epoch (2021) (15)
- The challenge of modeling interglacial CO2 and CH4 trends (2008) (15)
- Cooling in the late Cenozoic (1993) (15)
- Comparisons of atmosphere–ocean simulations of greenhouse gas-induced climate change for pre-industrial and hypothetical ‘no-anthropogenic’ radiative forcing, relative to present day (2011) (15)
- Evidence bearing on the mechanism of rapid deglaciation (1980) (15)
- Leg 94 Paleoenvironmental Synthesis (1987) (14)
- Glacial Inception in Marine Isotope Stage 19: An Orbital Analog for a Natural Holocene Climate (2018) (12)
- Proceedings of the Ocean Drilling Program, 108 Scientific Results (1989) (12)
- Historical stability of the Gulf Stream meander belt: foraminiferal evidence☆ (1968) (11)
- 9. EVOLUTION OF SOUTH SAHARAN/SAHELIAN ARIDITY BASED ON FRESHWATER DIATOMS (GENUS MELOSIRA) AND OPAL PHYTOLITHS: SITES 662 AND 6641 (1989) (11)
- Proceedings of the Ocean Drilling Program, 151 Scientific Results (1996) (9)
- THE EARLY ANTHROPOGENIC HYPOTHESIS A YEAR LATER An Editorial Reply (2005) (8)
- Southeast Pacific Paleoceanographic Transects (2001) (7)
- Hominin Environments in the East African Pliocene: An Assessment of the Faunal Evidence (2008) (6)
- Early Anthropogenic Overprints on Holocene Climate (2004) (6)
- Bridging a Disciplinary Gap (2013) (5)
- Comment on “A note on the relationship between ice core methane concentrations and insolation” by G. A. Schmidt et al. (2005) (5)
- Surface effects on deep flow (1987) (5)
- Climate of the Past Discussions Interactive comment on “ Ice-driven CO 2 feedback on ice volume ” by W . F . Ruddiman (2006) (4)
- Reply to Anthropocene Working Group responses (2019) (4)
- Sediment drifts and intraplate tectonics in the North Atlantic (1983) (4)
- (Table A3) Calcium carbonate concentrations of DSDP Site 94-609 in the North Atlantic (1989) (4)
- Electric Organ Discharges of Mormyrid Fish as a Possible Cue for Predatory Catfish (1999) (4)
- PRE-INDUSTRIAL DEPOPULATION , ATMOSPHERIC CARBON DIOXIDE , AND GLOBAL CLIMATE (2013) (4)
- Estimates of annual mean surface temperatures in the late Quaternary of the tropical Atlantic (1986) (3)
- EVOLUTION OF SOUTH SAHARAN / SAHELIAN ARIDITY BASED ON FRESHWATER DIATOMS ( GENUS MELOSIRA ) AND OPAL PHYTOLITHS : SITES 662 AND 664 1 (2006) (3)
- Stable isotope record, calcium carbonate conentrations, and sea surface temperture reconstructions of sediment cores from the North Atlantic (1989) (3)
- Stable isotope data of the 120 k time slice (1982) (3)
- The Early Anthropogenic Hypothesis (2016) (3)
- Geological evidence for the Anthropocene--Response. (2015) (2)
- Tectonic Boundary Conditions for Climate Reconstructions, Oxford Monographs on Geology and Geophysics, No. 39. (1999) (2)
- Response to Waters et al. (2022) The Anthropocene is complex. Defining it is not (2023) (2)
- Act Now (But How?) (2008) (2)
- Calcium carbonate content of sediment core RC13-228 (1996) (2)
- Early rice farming and anomalous methane trends, Quaternary Science Reviews (2008) (2)
- Falsification of Natural Explanations for Late Holocene Greenhouse-Gas Increases (2008) (2)
- Role of plant physiology and dynamic vegetation feedbacks in the climate response to low GHG concentrations typical of late stages of previous interglacials (2010) (2)
- Calcium carbonate content of sediment core V25-59 (1996) (2)
- The Anthropocene serves science better as an event, rather than an epoch (2022) (2)
- Introduction, Background, and Explanatory Notes, Deep Sea Drilling Project Leg 94, North Atlantic Ocean (1987) (2)
- (Table A5) Distribution of planktic foraminifera and sea surface temperature reconstruction of sediment core V30-97 in the North Atlantic (1989) (1)
- (Table A2) Sea surface temperature reconstruction of DSDP Site 94-607 in the North Atlantic (1989) (1)
- Introduction and Explanatory Notes (1988) (1)
- Calcium carbonate bulk analysis of Hole 94-607 (2004) (1)
- Proceedings of the Ocean Drilling Program, 202 Scientific Results (2006) (1)
- 22-Ma eolian deposits in China and long-term climate changes (2006) (1)
- Interactive comment on "The MIS 11 - MIS 1 analogy, southern European vegetation, atmospheric methane and the "early anthropogenic hypothesis"" by P. C. Tzedakis (2009) (1)
- Nicholas J. Shackleton (1937-2006) (2006) (1)
- Quaternary North Atlantic Surface Paleoceanography in Regions of Potential Deep-water Formation (1984) (1)
- Glacial inception during the late Holocene without carbon emissions from early agriculture: lessons from the stage-19 glacial inception (2013) (1)
- Calcium carbonate content of sediment core K708-007 (2003) (0)
- (Table 8) Estimated sea-surface temperatures of ODP Site 108-662 (1989) (0)
- Calcium carbonate content of sediment core V26-41 (1996) (0)
- (Table A1) Calcium Carbonate content and stable isotope ratios of benthic foraminifera in Late Pliocene sediments of DSDP Site 94-607 in the North Atlantic (1989) (0)
- Stable isotope record and calcium carbonate concentrations of Late Pliocene sediments of the North Atlantic (1989) (0)
- Left History 13_1 (final) (2010) (0)
- Late Miocene to Plei-stocene evolution of climate in Africa and the low-latitude Atlantic: overview of Leg 108 results. In Ruddiman, W., Sarnthein, M. et al. (1989) (0)
- Calcium carbonate content of sediment core V12-66 (1996) (0)
- Calcium carbonate content of sediment core RC13-142 (1996) (0)
- Calcium carbonate content of sediment core V19-248 (1996) (0)
- Calcium carbonate content of sediment core RC13-215 (1996) (0)
- The Oceans. (New Instruments for Exploration: The Sea Floor; Marine Geology) (1982) (0)
- (Table 7) Estimates of magnetic reversal ages from stable oxygen isotope record of DSDP Site 94-609 in the North Atlantic (1989) (0)
- Corrigendum to: Cold climate during the closest Stage 11 analog to recent millennia: [Quaternary Science Reviews 24 (2004) 1111¿1121] (2006) (0)
- Calcium carbonate content of sediment core V28-125 (1991) (0)
- (Table A6) Calcium carbonate concentrations of sediment core V30-97 in the North Atlantic (1989) (0)
- Glacial Inception in Marine Isotope Stage 19: An Orbital Analog for a Natural Holocene Climate (2018) (0)
- Physical properties of Hole 94-607A (2004) (0)
- Nannofossil abundance of Hole 94-610A (2005) (0)
- Early Agriculture: Land Clearance and Climate Effects (2013) (0)
- Annotated record of the detailed examination of Mn deposits from DSDP Leg 94 (Holes 608, 609, 610A, 610B, 611) (1987) (0)
- Quaternary history of North America and adjacent oceans (1982) (0)
- Notes on long-term forcing of Artic climate (1991) (0)
- Nonlinear climate sensitivity caused by the ocean dynamics: implications for the Early Anthropogenic Hypothesis (2012) (0)
- Retrospective. Nicholas J. Shackleton (1937-2006). (2006) (0)
- (Table A1) Stable carbon and oxygen isotope ratios of benthic foraminifera from DSDP Site 94-607 in the North Atlantic (1989) (0)
- Calcium carbonate content of sediment core RC10-52 (1996) (0)
- Carbonates and bulk sediment geochemistry of ODP Hole 108-660A (2005) (0)
- Calcium carbonate content of sediment core V19-309 (1996) (0)
- Calcium carbonate content of sediment core V30-192 (1996) (0)
- Calcium carbonate content of sediment core V22-177 (1996) (0)
- Climate Model Tests Of Anthropogenic Influence On Greenhouse-Induced Climate Change: The Role Of Plant Physiology Feedbacks (2008) (0)
- Table A4) Stacked stable isotope record of sediment cores from the North Atlantic (1989) (0)
- Geochemistry of interstitial water of ODP Hole 108-667A (2005) (0)
- Biogenic and terrigeneous components in Pliocene-Pleistocene sediments of the equatorial Atlantic (1989) (0)
- (Table 7) Estimates of magnetic reversal ages from stable oxygen isotope record of DSDP Site 94-607 in the North Atlantic (1989) (0)
- Late Wisconsinan valley train terraces in north-central Iowa; Program and abstracts of the Eighth biennial meeting of the American Quaternary Association (1984) (0)
- Hole/Core summary of ODP Site 108-663 (2005) (0)
- Understanding historical climate (1992) (0)
- Table 2) Datum levels of ODP Leg 108 site (1989) (0)
- Calcium carbonate content of sediment core A180-016 (1997) (0)
- Climate Changes at Geologic Time Scales: An Overview (2009) (0)
- Hole/Core summary of ODP Site 108-658 (2005) (0)
- Calcium carbonate content of sediment core A179-004 (1997) (0)
- Geological evidence for the Anthropocene—Response (2015) (0)
- Core/Section summary of ODP Hole 108-658C (2005) (0)
- Depth-age model of ODP Hole 108-659A (2005) (0)
- The geology and stratigraphy of the lower Nanaimo group, Nanaimo, British Columbia (1980) (0)
- Paleontology age profile (datum list) of ODP Hole 108-666A (2005) (0)
- Palaeoclimate, global change and the future. K. D. Alverson, R. S. Bradley and T. F. Pederson (eds). Springer, Berlin, 2003 (221 pp) ISBN 3 540 42402 4 (2005) (0)
- Calcium carbonate content of sediment core V19-182 (1996) (0)
- Calcium carbonate content of sediment core V29-144 (1996) (0)
- (Table 4) Carbonate, opal, terrigenous fraction, and dry bulk density of ODP Hole 108-662A (1989) (0)
- Calcium carbonate content of sediment core V15-30 (1996) (0)
- Comment on: A note on the relationship between ice core methane concentrations and insolation. Authors' reply (2005) (0)
- Simulating late Holocene climate changes caused by competing forcing of the Earth's orbital and greenhouse gas changes (2014) (0)
- Paleotemperature calclulated for the 120 k time slice (1982) (0)
- Feedbacks of the plant physiology in a coupled climate model under a (2009) (0)
- Climate of the Past Discussions Interactive comment on “ The MIS 11 – MIS 1 analogy , southern European vegetation , atmospheric methane and the “ early anthropogenic hypothesis ” ” by P . C . (2009) (0)
- ACCEPTING THE QGG AWARD FOR LIFETIME ACHIEVEMENT (2016) (0)
- The oceans. (1982) (0)
- Did agriculture beget agriculture during the past several millennia? (2022) (0)
- Dinoflagellate abundance of Hole 94-607 (2005) (0)
- ESSAY REVIEW Climates of Change: Perspectives on Past and Future Climate Change and its Impact on Human Societies (2007) (0)
- Paleontology age profile (datum list) of ODP Hole 108-660A (2005) (0)
- The Early Anthropogenic Hypothesis: Top-Down and Bottom-up Evidence (2014) (0)
- Planktic foraminifera abundance of Hole 94-607A (2005) (0)
- (Table A1) Calcium carbonate content of DSDP Site 94-607 in the North Atlantic (1989) (0)
- Paleontology age profile (datum list) of ODP Hole 108-658A (2005) (0)
- Sound velocity of Hole 94-607 (2005) (0)
- Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene (2020) (0)
- (Table 6) Ages of oxygen isotopic stages between 1.60 and 0.734 Ma of DSDP Site 94-607 in the North Atlantic (1989) (0)
- Shear strength of Hole 94-611 (2005) (0)
- Sample corelog of ODP Hole 108-659C (2005) (0)
- Sea surface temperatur reconstruction for ODP Site 108-662 (1989) (0)
- Book reviews (2007) (0)
- (Table 3) Middle Pleistocene oxygen isotopic ratios drom the planktonic foraminifer Globigerinoides ruber at ODP Hole 108-663A (1989) (0)
- Calcium carbonate content of sediment core RC08-103 (1996) (0)
- Climate of the Past Discussions Interactive comment on “ The importance of Northern Peatlands in global carbon systems during the Holocene ” by Y . Wang et al . (2009) (0)
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