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Children drinking private well water have higher blood lead than those with city water 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (29) : 16898-16907
作者:  Gibson, Jacqueline MacDonald;  Fisher, Michael;  Clonch, Allison;  MacDonald, John M.;  Cook, Philip J.
收藏  |  浏览/下载:26/0  |  提交时间:2020/07/09
drinking water  private well  children'  s health  lead exposure  blood lead  
Attitudes of urban residents towards environmental migration in Kenya and Vietnam 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (7) : 622-+
作者:  Spilker, Gabriele;  Nguyen, Quynh;  Koubi, Vally;  Bohmelt, Tobias
收藏  |  浏览/下载:3/0  |  提交时间:2020/06/29
Scientists' warning on affluence 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Wiedmann, Thomas;  Lenzen, Manfred;  Keysser, Lorenz T.;  Steinberger, Julia K.
收藏  |  浏览/下载:9/0  |  提交时间:2020/06/22
Ecological macroeconomics in the open economy: Sustainability, unequal exchange and policy coordination in a center-periphery model 期刊论文
ECOLOGICAL ECONOMICS, 2020, 172
作者:  Althouse, Jeffrey;  Guarini, Giulio;  Gabriel Porcile, Jose
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
Ecological macroeconomics  Green growth  Ecologically unequal exchange  Balance of payments constraint  Environmental policy coordination  Center-periphery model  
The social and environmental influences of population growth rate and demographic pressure deserve greater attention in ecological economics 期刊论文
ECOLOGICAL ECONOMICS, 2020, 172
作者:  O&;  39;Sullivan, Jane N.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
Capital widening  Demographic dynamics  Family planning  Inequality  Overpopulation  Population growth rate  Population pressure  
Characterizing disproportionality in facility-level toxic releases in US manufacturing, 1998-2012 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (6)
作者:  Collins, M.;  Pulver, S.;  Hill, D.;  Manski, B.
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/02
disproportionality  US manufacturing  industrial pollution  
The economic interaction between climate change mitigation, climate migration and poverty 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (6) : 518-+
作者:  Marotzke, Jochem;  Semmann, Dirk;  Milinski, Manfred
收藏  |  浏览/下载:6/0  |  提交时间:2020/06/01
Perceptions of deforestation in the Argentinean Chaco: Combining Q-method and environmental justice 期刊论文
ECOLOGICAL ECONOMICS, 2020, 171
作者:  Zepharovich, Elena;  Ceddia, M. Graziano;  Rist, Stephan
收藏  |  浏览/下载:1/0  |  提交时间:2020/07/02
Disease hotspots or hot species? Infection dynamics in multi-host metacommunities controlled by species identity, not source location 期刊论文
ECOLOGY LETTERS, 2020, 23 (8) : 1201-1211
作者:  Wilber, Mark Q.;  Johnson, Pieter T. J.;  Briggs, Cheryl J.
收藏  |  浏览/下载:11/0  |  提交时间:2020/05/13
Batrachochytrium dendrobatidis  chytrid fungus  endemic  hotspots  maintenance species  metacommunity  metapopulaton  Pseudacris regilla  reservoir species  source-sink dynamics  
Monumental architecture at Aguada Fenix and the rise of Maya civilization 期刊论文
NATURE, 2020
作者:  Bedding, Timothy R.;  Murphy, Simon J.;  Hey, Daniel R.;  Huber, Daniel;  Li, Tanda;  Smalley, Barry;  Stello, Dennis;  White, Timothy R.;  Ball, Warrick H.;  Chaplin, William J.;  Colman, Isabel L.;  Fuller, Jim;  Gaidos, Eric;  Harbeck, Daniel R.;  Hermes, J. J.;  Holdsworth, Daniel L.;  Li, Gang;  Li, Yaguang;  Mann, Andrew W.;  Reese, Daniel R.;  Sekaran, Sanjay;  Yu, Jie;  Antoci, Victoria;  Bergmann, Christoph;  Brown, Timothy M.;  Howard, Andrew W.;  Ireland, Michael J.;  Isaacson, Howard;  Jenkins, Jon M.;  Kjeldsen, Hans;  McCully, Curtis;  Rabus, Markus;  Rains, Adam D.;  Ricker, George R.;  Tinney, Christopher G.;  Vanderspek, Roland K.
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/03

Archaeologists have traditionally thought that the development of Maya civilization was gradual, assuming that small villages began to emerge during the Middle Preclassic period (1000-350 bc  dates are calibrated throughout) along with the use of ceramics and the adoption of sedentism(1). Recent finds of early ceremonial complexes are beginning to challenge this model. Here we describe an airborne lidar survey and excavations of the previously unknown site of Aguada Fenix (Tabasco, Mexico) with an artificial plateau, which measures 1,400 m in length and 10 to 15 m in height and has 9 causeways radiating out from it. We dated this construction to between 1000 and 800 bc using a Bayesian analysis of radiocarbon dates. To our knowledge, this is the oldest monumental construction ever found in the Maya area and the largest in the entire pre-Hispanic history of the region. Although the site exhibits some similarities to the earlier Olmec centre of San Lorenzo, the community of Aguada Fenix probably did not have marked social inequality comparable to that of San Lorenzo. Aguada Fenix and other ceremonial complexes of the same period suggest the importance of communal work in the initial development of Maya civilization.


Lidar survey of the Maya lowlands uncovers the monumental site of Aguada Fenix, which dates to around 1000-800 bc and points to the role of communal construction in the development of Maya civilization.