Science news articles about 'ocean chemistry'

  • Climate change alters ocean chemistry

    ... years. But what our data suggests is that there could be a more dynamic relationship between climate and ocean chemistry, which can sometimes result in rapid biogeochemical reorganization." "We see ...
  • A new wrinkle in ancient ocean chemistry

    ... further in demonstrating that even very low concentrations of oxygen can have profound effects on ocean chemistry. To arrive at their results, the researchers analyzed 2.5 billion-year-old black ...
  • Bacteria 'feed' on earth's ocean-bottom crust

    ... journal Nature. The findings pose intriguing questions about ocean chemistry and the co-evolution of Earth and life. ... . Up until now, dark, carbon-poor ocean depths appeared to offer little energy, ...
  • Ocean life under threat from climate change

    ... ocean temperatures, the supply of nutrients from the land, ocean chemistry, food chains, shifts in wind systems, ocean currents and extreme events such as cyclones," Dr Poloczanska said. ...
  • Acidifying oceans add urgency to CO2 cuts

    ... cost: the extra carbon dioxide has caused the ocean's average surface pH (a measure of water ... contrast to climate model predictions, such future ocean chemistry projections are largely model-independent ...
  • Ocean Acidification In The Caribbean Significant, Yet Variable

    ... much of the Caribbean and Gulf of Mexico, reports strong natural variations in ocean chemistry in some parts of the Caribbean that could affect the way reefs respond to future ocean acidification.
  • ASU professor 'follows the elements' to understand evolution in ancient oceans

    ... different ways for biological processes that affect the environment. As a result, Anbar says that changes in ocean chemistry probably had many unusual consequences in Earth history. For instance, he ...
  • Asteroid impact could have stirred the ocean

    Model offers one explanation for sudden change in deep-ocean chemistry almost 2 billion years ago
  • Geoengineering could slow down the global water cycle

    ... , sunshade geoengineering would not limit the amount of CO2 emissions. CO2 effects on ocean chemistry, specifically, could have harmful consequences for marine biota because of ocean acidification, ...
  • Methane release could cause abrupt, far-reaching climate change

    ... abruptness of the glacial termination, along with changes in ancient ocean chemistry and chemical deposits in the oceans, have been a challenge to climate scientists. "The geologic deposits of this ...
  • Modest CO2 cutbacks may be too little, too late for coral reefs

    ... The researchers' conclusions are based on computer simulations of ocean chemistry stabilized at atmospheric CO2 levels ... warm water coral reefs were surrounded by open ocean waters at least 3.5 times ...
  • Researchers find earliest evidence for animal life

    ... ago) likely caused a major reorganization of marine ecosystems, perhaps by irrevocably altering ocean chemistry. "This paved the way for the evolution of animal feeders living on the seafloor," he ...
  • New equation of state of seawater

    ... latest revisions, UM Rosenstiel School of Marine and Atmospheric Science Professor Millero, is a leading force in oceanic chemistry research. His work alongside scientists from the ...
  • New deep-sea coral discovered on NOAA-supported mission

    ... among the first marine organisms to be affected by ocean acidification," said Richard Spinrad, Ph.D ... Atmospheric Research. Ocean acidification is a change in ocean chemistry due to excess carbon dioxide ...
  • AGU journal highlights -- March 25, 2009

    ... calcification because carbon dioxide alters ocean chemistry and decreases aragonite saturation because ... atmospheric pressure above the North Atlantic Ocean called the North Atlantic Oscillation produce ...

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