85 Toward global mapping of river discharge using satellite images and at-many-stations hydraulic geometry.
http://www.pnas.org/content/111/13/4788.abstract
84 Pluvials, droughts, the Mongol Empire, and modern Mongolia.
http://www.pnas.org/content/111/12/4375
83 Hydrological droughts in the 21st century, hotspots and uncertainties from a global multimodel ensemble experiment.
http://www.pnas.org/content/111/9/3262.full
82 A 3,500-year tree-ring record of annual precipitation on the northeastern Tibetan Plateau.
http://www.pnas.org/content/111/8/2903.abstract
81 Crude oil from the Deepwater Horizon spill is cardiotoxic to tuna species that spawn in the Gulf of Mexico.
http://www.sciencemag.org/content/343/6172/772.abstract
80 Mycorrhiza-mediated competition between plants and decomposers drives soil carbon storage.
http://www.nature.com/nature/journal/v505/n7484/full/nature12901.html
79 Natural wetland emissions of methylated trace elements.
http://www.nature.com/ncomms/2014/140108/ncomms4035/full/ncomms4035.html
78 The Environmental Impact of Cambodia's Ancient City of Mahendraparvata (Phnom Kulen).
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0084252;jsessionid=B3B83250035957E64122118873BDAD0D
77 Global climate policy impacts on livestock, land use, livelihoods, and food security.
http://www.pnas.org/content/110/52/20894.abstract
76 Assessing the impacts of livestock production on biodiversity in rangeland ecosystems.
http://www.pnas.org/content/110/52/20900.abstract
75 Long-term fate of nitrate fertilizer in agricultural soils.
http://www.pnas.org/content/110/45/18185.abstract
74 A test of Darwin's naturalization hypothesis in the thistle tribe shows that close relatives make bad neighbors.
http://www.pnas.org/content/110/44/17915.abstract
73 An ensemble of simulations indicates that ongoing climate change will exceed the bounds of historical climate variability some time in the mid to late twenty-first century and that the burden of rapid climate adaption will occur earliest in highly biodiverse and often economically challenged tropical areas.
http://www.nature.com/nature/journal/v502/n7470/full/nature12540.html
72 Successful control of phosphorus levels results in nitrogen accumulation in many of Earth’s largest lakes.
http://www.sciencemag.org/content/342/6155/247.abstract
71 Robust increases in severe thunderstorm environments in response to greenhouse forcing.
http://www.pnas.org/content/110/41/16361.abstract
70 The rapid loss of native mammals from isolated Thai forests suggests that forest fragments cannot maintain biodiversity.
http://www.sciencemag.org/content/341/6153/1508.abstract
69 Global flood risk under climate change.
http://www.nature.com/nclimate/journal/v3/n9/full/nclimate1911.html
68 Uncertainty in simulating wheat yields under climate change.
http://www.nature.com/nclimate/journal/v3/n9/full/nclimate1916.html
67 Clouds and temperature drive dynamic changes in tropical flower production.
http://www.nature.com/nclimate/journal/v3/n9/full/nclimate1934.html
66 Future flood losses in major coastal cities.
http://www.nature.com/nclimate/journal/v3/n9/full/nclimate1979.html
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