Nancy L Rose
Biographic Data
| ID | 1454905 |
|---|---|
| NAME | Nancy L Rose |
| GIVEN NAMES | Nancy L |
| FAMILY NAME | Rose |
| SIGNATURE | ROSE N L |
| AFFILIATIONS | University College London |
| ORCID | 0000-0002-5697-7334 |
| VERIFIED | Yes |
| TOTAL WORKS | 29 |
| TOTAL CITATIONS | 266 |
| AUTHOR COUNT | 29 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1967 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 5 |
A mid-20th century stratigraphical Anthropocene is recognisable in the birth-area of the industrial revolution
The formalisation of the Anthropocene as a subdivision of the Geological Time Scale has been under debate. Its stratigraphic boundary has been proposed as a precise Global boundary Stratotype Section and Point (GSSP) in the mid-20th century, but it is part of an episode of human-induced changes to the Earth System that have unfolded over millennia. Here we attempt to identify stratigraphical patterns of the Anthropocene from a previously well stu…
High-resolution analysis of the varved succession at Crawford lake across the base of the proposed Crawfordian stage and Anthropocene series
Four years after the Anthropocene Working Group (AWG) voted to work toward defining the Anthropocene series/epoch with a base in the mid-20th C, the varved sediments of Crawford Lake (Milton, ON, Canada) were selected as the Global boundary Stratotype Section and Point (GSSP) candidate. The initial major rise in activity of 239 + 240 Pu had been selected as the primary chronostratigraphic marker to define the base of the Anthropocene, but the pre…
Transmission Impossible? Prospects for Decarbonizing the US Grid
Encouraged by the declining cost of grid-scale renewables, recent analyses conclude that the United States could reach net zero carbon dioxide emissions by 2050 at relatively low cost using currently available technologies. While the cost of renewable generation has declined dramatically, integrating these renewables would require a large expansion in transmission to deliver that power. Already there is growing evidence that the United States has…
The Sihailongwan Maar Lake, northeastern China as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
Sihailongwan Maar Lake, located in Northeast China, is a candidate Global boundary Stratotype Section and Point (GSSP) for demarcation of the Anthropocene. The lake's varved sediments are formed by alternating allogenic atmospheric inputs and authigenic lake processes and store a record of environmental and human impacts at a continental-global scale. Varve counting and radiometric dating provided a precise annual-resolution sediment chronology f…
The Śnieżka peatland as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The subalpine, atmospherically fed Śnieżka peatland, located in the Polish part of the Sudetes, is one of the nominated candidates for the GSSP of the Anthropocene. Data from two profiles, Sn1 (2012) and Sn0 (2020), from this site are critical for distinguishing the proposed epoch, while an additional core Sn2 is presented to support main evidence. The Sn0 archive contains a wide array of critical markers such as plutonium (Pu), radiocarbon (F14C…
The Flower Garden Banks Siderastrea siderea coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) candidate site of West Flower Garden Bank (27.8762°N, 93.8147°W) is an open ocean location in the Gulf of Mexico with a submerged coral reef and few direct human impacts. Corals contain highly accurate and precise (<±1 year) internal chronologies, similar to tree rings, and their exoskeletons are formed of aragonite and can be preserved in the rock record. Here we prese…
The East Gotland Basin (Baltic Sea) as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The short sediment core EMB201/7-4 retrieved from the East Gotland Basin, central Baltic Sea, is explored here as a candidate to host the stratigraphical basis for the Anthropocene series and its equivalent Anthropocene epoch, still to be formalized in the Geological Time Scale. The core has been accurately dated back to 1840 CE using a well-established event stratigraphy approach. A pronounced and significant change occurs at 26.5 cm (dated 1956…
The varved succession of Crawford Lake, Milton, Ontario, Canada as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
An annually laminated succession in Crawford Lake, Ontario, Canada is proposed for the Global boundary Stratotype Section and Point (GSSP) to define the Anthropocene as a series/epoch with a base dated at 1950 CE. Varve couplets of organic matter capped by calcite precipitated each summer in alkaline surface waters reflect environmental change at global to local scales. Spheroidal carbonaceous particles and nitrogen isotopes record an increase in…
The Palmer ice core as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The remote Antarctic continent, distant from human industrial activity, should be one of the last places on Earth to capture Anthropogenic change. Hence, stratigraphic evidence of pollution and nuclear activity in the Antarctic provides proof of the global nature of the Anthropocene epoch. We propose an Antarctic Peninsula ice core candidate for the Global boundary Stratotype Section and Point (GSSP) to the onset of the Anthropocene. The Palmer i…
The San Francisco Estuary, USA as a reference section for the Anthropocene series
A San Francisco Estuary core was analysed at high resolution to assess its component stratigraphic signatures of the Anthropocene in the form of non-native species, Hg, spheroidal carbonaceous particles, δ13Corg, δ15N, radiogenic materials, and heavy metals. Time series analysis of the core using Ti data provides a chronology to depth 167 cm into the 1960s. Below this, to depth 230 cm, the lowermost part of the core may extend to the 1950s or pot…
The Searsville Lake Site (California, USA) as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
Cores from Searsville Lake within Stanford University's Jasper Ridge Biological Preserve, California, USA, are examined to identify a potential GSSP for the Anthropocene: core JRBP2018-VC01B (944.5 cm-long) and tightly correlated JRBP2018-VC01A (852.5 cm-long). Spanning from 1900 CE ± 3 years to 2018 CE, a secure chronology resolved to the sub-annual level allows detailed exploration of the Holocene-Anthropocene transition. We identify the primar…
Imprints of the Little Ice Age and the severe earthquake of AD 2001 on the aquatic ecosystem of a tropical maar lake in El Salvador
Using a 530-year sediment record from the maar Lake Apastepeque, El Salvador, and based on diverse geochemical and biological (cladocerans, chironomids, diatoms, ostracods, testate amoebae) indicators, we estimated climatic and environmental alterations during the Little Ice Age (LIA) and reconstructed the recent history of the lake. Results demonstrate relatively humid conditions in the mid-elevations (500 m a.s.l.) of El Salvador during most pa…
Mercury enrichment in anthrosols and adjacent coastal sediments at a Classic Maya site, Marco Gonzalez, Belize
Elevated concentrations of total mercury (THg) are found in the surface soils and flanking wetland sediments at the Classic Maya coastal site of Marco Gonzalez, Belize. Significant concentrations (up to 1.3 μg·g −1 dry mass) of THg occur in leaf litter‐rich soils, as well as in the artefact‐rich anthrosol spread over the vegetated mound site of structures and occupation debris. The abundance and spatial pattern of major and trace elements measure…
A consideration of polychlorinated biphenyls as a chemostratigraphic marker of the Anthropocene
Polychlorinated biphenyls, organic pollutants of anthropogenic origin, were widely used in many industrial applications worldwide roughly from the 1930s to the 1970s. Both the use and disposal of polychlorinated biphenyls contributed to their ubiquity in different environmental compartments, and they show extremely high persistence because of their high physical and chemical stability. Concentrations of polychlorinated biphenyls in environmental …
Diatom community responses to long‐term multiple stressors at Lake Gusinoye, Siberia
Global freshwater systems are threatened by multiple anthropogenic stressors via impacts on ecological structure and function necessary to maintain their health. In order to properly manage freshwater ecosystems, we must have a better understanding of the ecological response to human‐induced stressors, especially in multiple stressor environments. When long‐term observational records are scarce or non‐existent, paleolimnology provides a means to …
First human impacts and responses of aquatic systems: A review of palaeolimnological records from around the world
Lake sediments constitute natural archives of past environmental changes. Historically, research has focused mainly on generating regional climate records, but records of human impacts caused by land use and exploitation of freshwater resources are now attracting scientific and management interests. Long-term environmental records are useful to establish ecosystem reference conditions, enabling comparisons with current environments and potentiall…
Regulation, Political Economy of
Regulation, Empirical Analysis of
Air pollutant contamination and acidification of surface waters in the North York Moors, UK: Multi-proxy evidence from the sediments of a moorland pool
Despite the extensive geographical range of palaeolimnological studies designed to assess the extent of surface water acidification in the United Kingdom during the 1980s, little attention was paid to the status of surface waters in the North York Moors (NYM). In this paper, we present sediment core data from a moorland pool in the NYM that provide a record of air pollution contamination and surface water acidification. The 41-cm-long core was di…
Dating of recent catchment peats using spheroidal carbonaceous particle (SCP) concentration profiles with particular reference to Lochnagar, Scotland
Ten peat cores were taken from the catchment of Lochnagar, a remote mountain lake in the Cairngorms region of Scotland. Organic content, measured as loss-on-ignition (LOI), profiles of most of the cores are high (<90%) throughout. As the movement of spheroidal carbonaceous particles (SCPs) is insignificant, with steady accumulation, the peats can be used as an archive for reconstructing the historical records of SCP deposition. The SCP profiles o…
Sedimentary records of the extent and impact of atmospheric contamination from a remote Siberian highland lake
The Central Asian Khamar Daban Mountain Range (SE Siberia) is a remote region with softwater lakes that probably receive atmospheric pollution from local industry as well as via long-distance transport. Palaeolimnological evidence of the impact of atmospheric pollution at one isolated and otherwise undisturbed highland site in the Khamar Daban, Lake Kholodnoye, was obtained. Short sediment cores were analysed for radio-isotopes, to establish a se…
Selective concentration and enumeration of tephra shards from lake sediment cores
This paper describes a technique for the enumeration of tephra shards from lake sediment cores whereby approximately 85% of unwanted sediment fractions (organic matter, biogenic silica, carbonates) are removed by selective stepwise chemical attack. The order of 100 samples can be prepared simultaneously in a modest-sized water-bath and the recovery rate of the technique is greater than 90%. The procedure is appli cable to all lake sediment types
Sedimentary records of recent environmental change in Lake Baikal, Siberia
Lake Baikal is the world's largest freshwater lake and is internationally famous for its rich and largely endemic biota. Concern about this unique ecosystem has grown since the late 1970s but whether recent biological changes result from natural fluctuations or pollution is unclear. One way of discriminating between these processes is to examine records of recent change in radiometrically dated deep-water sediment cores. Here we use high-resoluti…
Dating of recent lake sediments in the United Kingdom and Ireland using spheroidal carbonaceous particle (SCP) concentration profiles
Spheroidal carbonaceous particles (SCPs) produced from fossil-fuel combustion are found in lake sediments and provide a historical record of atmospheric pollutant deposition. The sediment record of these particles is remarkably consistent and the main features are now seen throughout Europe and beyond. Once the SCP record from a region has been established using accurately dated cores, SCP profiles can be used to determine dates at other sites in…
Competition and Price Dispersion in the U.S. Airline Industry
The authors study dispersion in the prices an airline charges to different passengers on the same route. This variation in fares is substantial: the expected absolute difference in fares between two passengers on a route is 36 percent of the airline's average ticket price. The pattern of observed price dispersion cannot easily be explained by cost differences alone. Dispersion increases on routes with more competition or lower flight density, con…
Passing the President's Program: Public Opinion and Presidential Influence in Congress
Correlations between legislative support scores and presidential popularity do not accurately reflect the relationship between public opinion and presidential influence in Congress. Presidents make strategic choices to expend their public prestige to obtain congressional approval of programmatic initiatives. Previous studies have ignored such choices as well as other features of the strategic environment which tend to lower the apparent legislati…
Labor Rent Sharing and Regulation: Evidence from the Trucking Industry
Labor is likely to be an important claimant to firms' rents, particularly in a regulated environment. This study analyzes wage responses to trucking deregulation to test labor rent-sharing hypotheses. The results indicate substantial declines in union wages as a consequence of reduced regulatory rents. Union premia over nonunion wages fell from 50 percent to less than 30 percent, implying aggregate annual losses of $950 million to $1.6 billion. R…
The varved succession of Crawford Lake, Milton, Ontario, Canada as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
An annually laminated succession in Crawford Lake, Ontario, Canada is proposed for the Global boundary Stratotype Section and Point (GSSP) to define the Anthropocene as a series/epoch with a base dated at 1950 CE. Varve couplets of organic matter capped by calcite precipitated each summer in alkaline surface waters reflect environmental change at global to local scales. Spheroidal carbonaceous particles and nitrogen isotopes record an increase in…
Dating of recent lake sediments in the United Kingdom and Ireland using spheroidal carbonaceous particle (SCP) concentration profiles
Spheroidal carbonaceous particles (SCPs) produced from fossil-fuel combustion are found in lake sediments and provide a historical record of atmospheric pollutant deposition. The sediment record of these particles is remarkably consistent and the main features are now seen throughout Europe and beyond. Once the SCP record from a region has been established using accurately dated cores, SCP profiles can be used to determine dates at other sites in…
Profitability and Product Quality: Economic Determinants of Airline Safety Performance
This study investigates product safety choices in the airline industry, with particular attention to the role of financial conditions. The analysis uses data on thirty-five large scheduled passenger airlines over the 1957-86 period to estimate the effect of profitability and other aspects of financial health on accident and incident rates. The results indicate that lower profitability is correlated with higher accident and incident rates, particu…
The Śnieżka peatland as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The subalpine, atmospherically fed Śnieżka peatland, located in the Polish part of the Sudetes, is one of the nominated candidates for the GSSP of the Anthropocene. Data from two profiles, Sn1 (2012) and Sn0 (2020), from this site are critical for distinguishing the proposed epoch, while an additional core Sn2 is presented to support main evidence. The Sn0 archive contains a wide array of critical markers such as plutonium (Pu), radiocarbon (F14C…
Competition and Price Dispersion in the U.S. Airline Industry
The authors study dispersion in the prices an airline charges to different passengers on the same route. This variation in fares is substantial: the expected absolute difference in fares between two passengers on a route is 36 percent of the airline's average ticket price. The pattern of observed price dispersion cannot easily be explained by cost differences alone. Dispersion increases on routes with more competition or lower flight density, con…
The Sihailongwan Maar Lake, northeastern China as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
Sihailongwan Maar Lake, located in Northeast China, is a candidate Global boundary Stratotype Section and Point (GSSP) for demarcation of the Anthropocene. The lake's varved sediments are formed by alternating allogenic atmospheric inputs and authigenic lake processes and store a record of environmental and human impacts at a continental-global scale. Varve counting and radiometric dating provided a precise annual-resolution sediment chronology f…
High-resolution analysis of the varved succession at Crawford lake across the base of the proposed Crawfordian stage and Anthropocene series
Four years after the Anthropocene Working Group (AWG) voted to work toward defining the Anthropocene series/epoch with a base in the mid-20th C, the varved sediments of Crawford Lake (Milton, ON, Canada) were selected as the Global boundary Stratotype Section and Point (GSSP) candidate. The initial major rise in activity of 239 + 240 Pu had been selected as the primary chronostratigraphic marker to define the base of the Anthropocene, but the pre…
The Palmer ice core as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The remote Antarctic continent, distant from human industrial activity, should be one of the last places on Earth to capture Anthropogenic change. Hence, stratigraphic evidence of pollution and nuclear activity in the Antarctic provides proof of the global nature of the Anthropocene epoch. We propose an Antarctic Peninsula ice core candidate for the Global boundary Stratotype Section and Point (GSSP) to the onset of the Anthropocene. The Palmer i…
Mercury enrichment in anthrosols and adjacent coastal sediments at a Classic Maya site, Marco Gonzalez, Belize
Elevated concentrations of total mercury (THg) are found in the surface soils and flanking wetland sediments at the Classic Maya coastal site of Marco Gonzalez, Belize. Significant concentrations (up to 1.3 μg·g −1 dry mass) of THg occur in leaf litter‐rich soils, as well as in the artefact‐rich anthrosol spread over the vegetated mound site of structures and occupation debris. The abundance and spatial pattern of major and trace elements measure…
Dating of recent catchment peats using spheroidal carbonaceous particle (SCP) concentration profiles with particular reference to Lochnagar, Scotland
Ten peat cores were taken from the catchment of Lochnagar, a remote mountain lake in the Cairngorms region of Scotland. Organic content, measured as loss-on-ignition (LOI), profiles of most of the cores are high (<90%) throughout. As the movement of spheroidal carbonaceous particles (SCPs) is insignificant, with steady accumulation, the peats can be used as an archive for reconstructing the historical records of SCP deposition. The SCP profiles o…
The East Gotland Basin (Baltic Sea) as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The short sediment core EMB201/7-4 retrieved from the East Gotland Basin, central Baltic Sea, is explored here as a candidate to host the stratigraphical basis for the Anthropocene series and its equivalent Anthropocene epoch, still to be formalized in the Geological Time Scale. The core has been accurately dated back to 1840 CE using a well-established event stratigraphy approach. A pronounced and significant change occurs at 26.5 cm (dated 1956…
The San Francisco Estuary, USA as a reference section for the Anthropocene series
A San Francisco Estuary core was analysed at high resolution to assess its component stratigraphic signatures of the Anthropocene in the form of non-native species, Hg, spheroidal carbonaceous particles, δ13Corg, δ15N, radiogenic materials, and heavy metals. Time series analysis of the core using Ti data provides a chronology to depth 167 cm into the 1960s. Below this, to depth 230 cm, the lowermost part of the core may extend to the 1950s or pot…
The Searsville Lake Site (California, USA) as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
Cores from Searsville Lake within Stanford University's Jasper Ridge Biological Preserve, California, USA, are examined to identify a potential GSSP for the Anthropocene: core JRBP2018-VC01B (944.5 cm-long) and tightly correlated JRBP2018-VC01A (852.5 cm-long). Spanning from 1900 CE ± 3 years to 2018 CE, a secure chronology resolved to the sub-annual level allows detailed exploration of the Holocene-Anthropocene transition. We identify the primar…
A mid-20th century stratigraphical Anthropocene is recognisable in the birth-area of the industrial revolution
The formalisation of the Anthropocene as a subdivision of the Geological Time Scale has been under debate. Its stratigraphic boundary has been proposed as a precise Global boundary Stratotype Section and Point (GSSP) in the mid-20th century, but it is part of an episode of human-induced changes to the Earth System that have unfolded over millennia. Here we attempt to identify stratigraphical patterns of the Anthropocene from a previously well stu…
The Flower Garden Banks Siderastrea siderea coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) candidate site of West Flower Garden Bank (27.8762°N, 93.8147°W) is an open ocean location in the Gulf of Mexico with a submerged coral reef and few direct human impacts. Corals contain highly accurate and precise (<±1 year) internal chronologies, similar to tree rings, and their exoskeletons are formed of aragonite and can be preserved in the rock record. Here we prese…
Diatom community responses to long‐term multiple stressors at Lake Gusinoye, Siberia
Global freshwater systems are threatened by multiple anthropogenic stressors via impacts on ecological structure and function necessary to maintain their health. In order to properly manage freshwater ecosystems, we must have a better understanding of the ecological response to human‐induced stressors, especially in multiple stressor environments. When long‐term observational records are scarce or non‐existent, paleolimnology provides a means to …
Selective concentration and enumeration of tephra shards from lake sediment cores
This paper describes a technique for the enumeration of tephra shards from lake sediment cores whereby approximately 85% of unwanted sediment fractions (organic matter, biogenic silica, carbonates) are removed by selective stepwise chemical attack. The order of 100 samples can be prepared simultaneously in a modest-sized water-bath and the recovery rate of the technique is greater than 90%. The procedure is appli cable to all lake sediment types
Sedimentary records of recent environmental change in Lake Baikal, Siberia
Lake Baikal is the world's largest freshwater lake and is internationally famous for its rich and largely endemic biota. Concern about this unique ecosystem has grown since the late 1970s but whether recent biological changes result from natural fluctuations or pollution is unclear. One way of discriminating between these processes is to examine records of recent change in radiometrically dated deep-water sediment cores. Here we use high-resoluti…
Hrothgar, Nestor, and Religiosity as a Mode of Characterization in Heroic Poetry
Passing the President's Program: Public Opinion and Presidential Influence in Congress
Correlations between legislative support scores and presidential popularity do not accurately reflect the relationship between public opinion and presidential influence in Congress. Presidents make strategic choices to expend their public prestige to obtain congressional approval of programmatic initiatives. Previous studies have ignored such choices as well as other features of the strategic environment which tend to lower the apparent legislati…
Labor Rent Sharing and Regulation: Evidence from the Trucking Industry
Labor is likely to be an important claimant to firms' rents, particularly in a regulated environment. This study analyzes wage responses to trucking deregulation to test labor rent-sharing hypotheses. The results indicate substantial declines in union wages as a consequence of reduced regulatory rents. Union premia over nonunion wages fell from 50 percent to less than 30 percent, implying aggregate annual losses of $950 million to $1.6 billion. R…
Profitability and Product Quality: Economic Determinants of Airline Safety Performance
This study investigates product safety choices in the airline industry, with particular attention to the role of financial conditions. The analysis uses data on thirty-five large scheduled passenger airlines over the 1957-86 period to estimate the effect of profitability and other aspects of financial health on accident and incident rates. The results indicate that lower profitability is correlated with higher accident and incident rates, particu…
Competition and Price Dispersion in the U.S. Airline Industry
The authors study dispersion in the prices an airline charges to different passengers on the same route. This variation in fares is substantial: the expected absolute difference in fares between two passengers on a route is 36 percent of the airline's average ticket price. The pattern of observed price dispersion cannot easily be explained by cost differences alone. Dispersion increases on routes with more competition or lower flight density, con…
Sedimentary records of recent environmental change in Lake Baikal, Siberia
Lake Baikal is the world's largest freshwater lake and is internationally famous for its rich and largely endemic biota. Concern about this unique ecosystem has grown since the late 1970s but whether recent biological changes result from natural fluctuations or pollution is unclear. One way of discriminating between these processes is to examine records of recent change in radiometrically dated deep-water sediment cores. Here we use high-resoluti…
Dating of recent lake sediments in the United Kingdom and Ireland using spheroidal carbonaceous particle (SCP) concentration profiles
Spheroidal carbonaceous particles (SCPs) produced from fossil-fuel combustion are found in lake sediments and provide a historical record of atmospheric pollutant deposition. The sediment record of these particles is remarkably consistent and the main features are now seen throughout Europe and beyond. Once the SCP record from a region has been established using accurately dated cores, SCP profiles can be used to determine dates at other sites in…
Selective concentration and enumeration of tephra shards from lake sediment cores
This paper describes a technique for the enumeration of tephra shards from lake sediment cores whereby approximately 85% of unwanted sediment fractions (organic matter, biogenic silica, carbonates) are removed by selective stepwise chemical attack. The order of 100 samples can be prepared simultaneously in a modest-sized water-bath and the recovery rate of the technique is greater than 90%. The procedure is appli cable to all lake sediment types
Sedimentary records of the extent and impact of atmospheric contamination from a remote Siberian highland lake
The Central Asian Khamar Daban Mountain Range (SE Siberia) is a remote region with softwater lakes that probably receive atmospheric pollution from local industry as well as via long-distance transport. Palaeolimnological evidence of the impact of atmospheric pollution at one isolated and otherwise undisturbed highland site in the Khamar Daban, Lake Kholodnoye, was obtained. Short sediment cores were analysed for radio-isotopes, to establish a se…
Dating of recent catchment peats using spheroidal carbonaceous particle (SCP) concentration profiles with particular reference to Lochnagar, Scotland
Ten peat cores were taken from the catchment of Lochnagar, a remote mountain lake in the Cairngorms region of Scotland. Organic content, measured as loss-on-ignition (LOI), profiles of most of the cores are high (<90%) throughout. As the movement of spheroidal carbonaceous particles (SCPs) is insignificant, with steady accumulation, the peats can be used as an archive for reconstructing the historical records of SCP deposition. The SCP profiles o…
Air pollutant contamination and acidification of surface waters in the North York Moors, UK: Multi-proxy evidence from the sediments of a moorland pool
Despite the extensive geographical range of palaeolimnological studies designed to assess the extent of surface water acidification in the United Kingdom during the 1980s, little attention was paid to the status of surface waters in the North York Moors (NYM). In this paper, we present sediment core data from a moorland pool in the NYM that provide a record of air pollution contamination and surface water acidification. The 41-cm-long core was di…
Regulation, Political Economy of
Regulation, Empirical Analysis of
First human impacts and responses of aquatic systems: A review of palaeolimnological records from around the world
Lake sediments constitute natural archives of past environmental changes. Historically, research has focused mainly on generating regional climate records, but records of human impacts caused by land use and exploitation of freshwater resources are now attracting scientific and management interests. Long-term environmental records are useful to establish ecosystem reference conditions, enabling comparisons with current environments and potentiall…
Diatom community responses to long‐term multiple stressors at Lake Gusinoye, Siberia
Global freshwater systems are threatened by multiple anthropogenic stressors via impacts on ecological structure and function necessary to maintain their health. In order to properly manage freshwater ecosystems, we must have a better understanding of the ecological response to human‐induced stressors, especially in multiple stressor environments. When long‐term observational records are scarce or non‐existent, paleolimnology provides a means to …
A consideration of polychlorinated biphenyls as a chemostratigraphic marker of the Anthropocene
Polychlorinated biphenyls, organic pollutants of anthropogenic origin, were widely used in many industrial applications worldwide roughly from the 1930s to the 1970s. Both the use and disposal of polychlorinated biphenyls contributed to their ubiquity in different environmental compartments, and they show extremely high persistence because of their high physical and chemical stability. Concentrations of polychlorinated biphenyls in environmental …
Mercury enrichment in anthrosols and adjacent coastal sediments at a Classic Maya site, Marco Gonzalez, Belize
Elevated concentrations of total mercury (THg) are found in the surface soils and flanking wetland sediments at the Classic Maya coastal site of Marco Gonzalez, Belize. Significant concentrations (up to 1.3 μg·g −1 dry mass) of THg occur in leaf litter‐rich soils, as well as in the artefact‐rich anthrosol spread over the vegetated mound site of structures and occupation debris. The abundance and spatial pattern of major and trace elements measure…
Imprints of the Little Ice Age and the severe earthquake of AD 2001 on the aquatic ecosystem of a tropical maar lake in El Salvador
Using a 530-year sediment record from the maar Lake Apastepeque, El Salvador, and based on diverse geochemical and biological (cladocerans, chironomids, diatoms, ostracods, testate amoebae) indicators, we estimated climatic and environmental alterations during the Little Ice Age (LIA) and reconstructed the recent history of the lake. Results demonstrate relatively humid conditions in the mid-elevations (500 m a.s.l.) of El Salvador during most pa…
Transmission Impossible? Prospects for Decarbonizing the US Grid
Encouraged by the declining cost of grid-scale renewables, recent analyses conclude that the United States could reach net zero carbon dioxide emissions by 2050 at relatively low cost using currently available technologies. While the cost of renewable generation has declined dramatically, integrating these renewables would require a large expansion in transmission to deliver that power. Already there is growing evidence that the United States has…
The Sihailongwan Maar Lake, northeastern China as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
Sihailongwan Maar Lake, located in Northeast China, is a candidate Global boundary Stratotype Section and Point (GSSP) for demarcation of the Anthropocene. The lake's varved sediments are formed by alternating allogenic atmospheric inputs and authigenic lake processes and store a record of environmental and human impacts at a continental-global scale. Varve counting and radiometric dating provided a precise annual-resolution sediment chronology f…
The Śnieżka peatland as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The subalpine, atmospherically fed Śnieżka peatland, located in the Polish part of the Sudetes, is one of the nominated candidates for the GSSP of the Anthropocene. Data from two profiles, Sn1 (2012) and Sn0 (2020), from this site are critical for distinguishing the proposed epoch, while an additional core Sn2 is presented to support main evidence. The Sn0 archive contains a wide array of critical markers such as plutonium (Pu), radiocarbon (F14C…
The Flower Garden Banks Siderastrea siderea coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) candidate site of West Flower Garden Bank (27.8762°N, 93.8147°W) is an open ocean location in the Gulf of Mexico with a submerged coral reef and few direct human impacts. Corals contain highly accurate and precise (<±1 year) internal chronologies, similar to tree rings, and their exoskeletons are formed of aragonite and can be preserved in the rock record. Here we prese…
The East Gotland Basin (Baltic Sea) as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The short sediment core EMB201/7-4 retrieved from the East Gotland Basin, central Baltic Sea, is explored here as a candidate to host the stratigraphical basis for the Anthropocene series and its equivalent Anthropocene epoch, still to be formalized in the Geological Time Scale. The core has been accurately dated back to 1840 CE using a well-established event stratigraphy approach. A pronounced and significant change occurs at 26.5 cm (dated 1956…
The varved succession of Crawford Lake, Milton, Ontario, Canada as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
An annually laminated succession in Crawford Lake, Ontario, Canada is proposed for the Global boundary Stratotype Section and Point (GSSP) to define the Anthropocene as a series/epoch with a base dated at 1950 CE. Varve couplets of organic matter capped by calcite precipitated each summer in alkaline surface waters reflect environmental change at global to local scales. Spheroidal carbonaceous particles and nitrogen isotopes record an increase in…
The Palmer ice core as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The remote Antarctic continent, distant from human industrial activity, should be one of the last places on Earth to capture Anthropogenic change. Hence, stratigraphic evidence of pollution and nuclear activity in the Antarctic provides proof of the global nature of the Anthropocene epoch. We propose an Antarctic Peninsula ice core candidate for the Global boundary Stratotype Section and Point (GSSP) to the onset of the Anthropocene. The Palmer i…
Geology (21 works) · Geology and Paleoclimatology Research (18 works) · Paleontology (17 works) · Geography (16 works) · Anthropocene (12 works) · Archaeology (11 works) · Sediment (11 works) · Oceanography (9 works) · Ecology (8 works) · Global Boundary Stratotype Section and Point (8 works)