The Great Lakes helped make the U.S. an economic powerhouse. Now climate change, pollution, and invasive species threaten their complex ecosystems.
Studies of sediment cores from 12 acidic lakes in granitic, forested and uninhabited catchments in northern New England, U.S.A. produced diatom-inferred pH (IpH) 5.2 to 5.8 and alkalinity (Ialk) −12 to 31 µeq l−1, with slowly declining values at some lakes, for one to four c...
Rain, storms _ even snow _ from southern Lakes to Rockies
In northern (temperate and boreal) lakes, which account for most of the planet’s ice-free freshwater8,9, rates of CH4emission from littoral sediments are known to vary by at least three orders of magnitude3, leaving considerable uncertainty to be explained in regional and global C budgets. ...
The Great Lakes are used as a major mode oftransportfor bulk goods. The brigantineLe Griffon, which was commissioned byRené Robert Cavelier, Sieur de La Salle, was towed to the southern end of theNiagara River, to become the first sailing ship to travel the upper Great Lakes onAugust 7...
lakes Yongqiang Zhou1,2,3, Erik Jeppesen3,4, Jingbao Li5,Yunlin Zhang1, Xinping Zhang5 & Xichun Li6 We studied the impacts ofThree Gorges Reservoir (TGR) on the sedimentation regimes in the downstream- linked two largest Chinese freshwater lakes, Lake Dongting and Lake ...
The Boreal Plain ecozone represents the southern part of the study area (178,225 km2) where boreal forest transitions to the Prairie ecozone. The area's largest human imprint is, by far, at this transition (i.e., the Boreal Transition ecoregion) (Figure 1c). Large tracts of land in ...
As a consequence, a significant part of the operational wind farms is located in these areas, which is indicated by a share of 78% for Dobrogea and the southern part of the Barlad Plateau, including the Galati/Braila counties [13]. Definitely, the project Fantanele–Cogealac (600 MW) is...
Ohio—Lake Erie, the smallest of North America's five Great Lakes, supplies fresh drinking water to an estimated ll million people in Ohio, Michigan and southern Ontario province, Canada. Yet sometimes pollution, both from industrial waste and farm-chemical run-off, leaves large areas of the ...
SOUTHERN BRAZILFRESH-WATERRIVER-BASINMercury contamination in freshwater food webs can be severe and persistent, and freshwater fish are a major source of mercury contamination in humans. Northern hemisphere studies suggest that the primary pathway by which freshwater fish accumulate mercury is the food...