The ocean is a dynamic and rapidly evolving environment, a long-appreciated truth which becomes increasingly apparent as we observe it ever more carefully. Some of the transformations that we see are ones we are causing, and some are new to us only because we are looking in greater detail and with more sophisticated tools. This special issue contains a series of Reviews and News pieces that highlight some of the ways in which we see our oceans changing. Lozier (p. 1507) discusses how recent studies have challenged our view of large-scale ocean circulation as a simple conveyor belt, by revealing a more complex and nuanced system that reflects the effects of ocean eddies and surface atmospheric winds on the structure and variability of the ocean's overturning. Next, Doney (p. 1512) reviews how the chemistry of the oceans is changing, mostly due to human fossil fuel combustion, fertilizer use, and industrial activity. Nicholls and Cazenave (p. 1517) present an overview of recent sea-level rise, its impacts on coastal regions, and how adaptation may lessen those impacts. Two pieces examine how climate change is affecting marine biological systems: Schofield et al. (p. 1520) illustrate and discuss the role of ocean-observation techniques in documenting how marine ecosystems in the West Antarctic Peninsula region are evolving, and Hoegh-Guldberg and Bruno (p. 1523) present a more global view of the ways in which marine ecosystems are being affected by rapid anthropogenic variations.
To read the full, original article click on this link: Changing Oceans -- Smith et al. 328 (5985): 1497 -- Science