scholarly journals Global ocean warming tied to anthropogenic forcing

2002 ◽  
Vol 29 (11) ◽  
Author(s):  
Bernhard K. Reichert
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
A. Bagnell ◽  
T. DeVries

AbstractThe historical evolution of Earth’s energy imbalance can be quantified by changes in the global ocean heat content. However, historical reconstructions of ocean heat content often neglect a large volume of the deep ocean, due to sparse observations of ocean temperatures below 2000 m. Here, we provide a global reconstruction of historical changes in full-depth ocean heat content based on interpolated subsurface temperature data using an autoregressive artificial neural network, providing estimates of total ocean warming for the period 1946-2019. We find that cooling of the deep ocean and a small heat gain in the upper ocean led to no robust trend in global ocean heat content from 1960-1990, implying a roughly balanced Earth energy budget within −0.16 to 0.06 W m−2 over most of the latter half of the 20th century. However, the past three decades have seen a rapid acceleration in ocean warming, with the entire ocean warming from top to bottom at a rate of 0.63 ± 0.13 W m−2. These results suggest a delayed onset of a positive Earth energy imbalance relative to previous estimates, although large uncertainties remain.


2012 ◽  
Vol 2 (7) ◽  
pp. 524-529 ◽  
Author(s):  
P. J. Gleckler ◽  
B. D. Santer ◽  
C. M. Domingues ◽  
D. W. Pierce ◽  
T. P. Barnett ◽  
...  
Keyword(s):  

Science ◽  
2000 ◽  
Vol 287 (5461) ◽  
pp. 2113a-2113
Keyword(s):  

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8266 ◽  
Author(s):  
Andrea Y. Frommel ◽  
Colin J. Brauner ◽  
Bridie J.M. Allan ◽  
Simon Nicol ◽  
Darren M. Parsons ◽  
...  

Anthropogenic CO2 emissions are causing global ocean warming and ocean acidification. The early life stages of some marine fish are vulnerable to elevated ocean temperatures and CO2 concentrations, with lowered survival and growth rates most frequently documented. Underlying these effects, damage to different organs has been found as a response to elevated CO2 in larvae of several species of marine fish, yet the combined effects of acidification and warming on organ health are unknown. Yellowtail kingfish, Seriola lalandi, a circumglobal subtropical pelagic fish of high commercial and recreational value, were reared from fertilization under control (21 °C) and elevated (25 °C) temperature conditions fully crossed with control (500 µatm) and elevated (1,000 µatm) pCO2 conditions. Larvae were sampled at 11 days and 21 days post hatch for histological analysis of the eye, gills, gut, liver, pancreas, kidney and liver. Previous work found elevated temperature, but not elevated CO2, significantly reduced larval kingfish survival while increasing growth and developmental rate. The current histological analysis aimed to determine whether there were additional sublethal effects on organ condition and development and whether underlying organ damage could be responsible for the documented effects of temperature on survivorship. While damage to different organs was found in a number of larvae, these effects were not related to temperature and/or CO2 treatment. We conclude that kingfish larvae are generally vulnerable during organogenesis of the digestive system in their early development, but that this will not be exacerbated by near-future ocean warming and acidification.


2019 ◽  
Vol 36 (3) ◽  
pp. 249-252 ◽  
Author(s):  
Lijing Cheng ◽  
Jiang Zhu ◽  
John Abraham ◽  
Kevin E. Trenberth ◽  
John T. Fasullo ◽  
...  
Keyword(s):  

2012 ◽  
Vol 2 (6) ◽  
pp. 425-428 ◽  
Author(s):  
Dean Roemmich ◽  
W. John Gould ◽  
John Gilson
Keyword(s):  

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