_:genid1 "Figure may be copyright protected and permission may be required. Contact original figure source for information"^^ . "fig--es3_070918" . "ES.3"^^ . "ES.3. Total Carbon Budget of North American Aquatic Ecosystems"^^ . "Figure ES.3: Flux estimates, in teragrams of carbon\r\n(Tg C) per year, are derived from Ch. 13: Terrestrial Wetlands, p. 507; Ch. 14: Inland Waters, p. 568; Ch. 15: Tidal\r\nWetlands and Estuaries, p. 596; and Ch. 16: Coastal Ocean and Continental Shelves, p. 649. Carbon exchanges with\r\nthe atmosphere are limited to carbon dioxide (CO2) except for terrestrial wetlands, which include CO2 and methane.\r\nArrows leading from the atmosphere to different aquatic ecosystem compartments imply a loss of atmospheric carbon\r\nfrom the atmosphere to the ecosystem (a carbon sink). Arrows leading from the ecosystem to the atmosphere imply a\r\nloss of carbon from the ecosystem to the atmosphere (a carbon source). Horizontal arrows refer to transfer of carbon\r\nbetween ecosystems. Changes in some reservoir sizes are provided inside the boxes with deltas (Δ). Asterisks indicate that there is 95% confidence that the actual value is within 10% (*****), 25% (****), 50% (***), 100% (**), or >100% (*) of the reported value."^^ . _:genid1 . . . . "2004-01-01T00:00:00"^^ . "2013-12-31T00:00:00"^^ . . .