2021年2月9日 · The Federal Ocean Acidification Research and Monitoring Act: H.R. 4174. June 5, 2008—Scott Doney, Senior Scientist Written testimony presented to the Committee on Science and Technology, Subcommittee on Energy and Environment, United States House of Representatives. Effects of Climate Change and Ocean Acidification on Living Marine Resources

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2009年12月4日 · Excess CO 2 dissolves into the ocean and is converted to corrosive carbonic acid, a process known as “ocean acidification.” At the same time, the CO 2 also supplies carbon that combines with calcium already dissolved in seawater to provide the main ingredient for shells—calcium carbonate (CaCO 3 ), the same material found in chalk and ...

2020年9月10日 · The ocean’s so-called biological carbon pump removes carbon from the atmosphere and stores it deep in the ocean on timescales that are important to the lifespan of humans. The solubility carbon pump, which stores much larger amounts of carbon, operates on timescales in the thousands of years and is a much slower mixing process.

2018年1月29日 · The researchers note that ocean acidification is not happening in isolation and that other changes such as ocean warming will also affect coral growth. “Our next step is to expand our model to incorporate the effects of multiple stressors on corals’ skeletal growth,” said Weifu Guo, a geochemist at WHOI and the study’s lead investigator.

However, sufficient evidence about ocean acidification existed by 2007 that the IPCC Fourth Assessment Report on Climate Change (2007) stated in the Summary for Policy Makers, “The progressive acidification of the oceans due to increasing atmospheric carbon dioxide is expected to have negative impacts on marine shell-forming organisms (e.g ...

2019年10月11日 · Ocean acidification has been damaging coral skeletons and shells, including those of some phytoplankton, so alkalinity enhancement has the potential to reverse ongoing damage caused by carbon dioxide driven changes in pH.

2006年11月29日 · The increasing amount of carbon in the ocean will cause another problem for marine life: ocean acidification. The 3-percent increase in dissolved carbon in surface water may seem small, but it is enough to significantly alter the chemistry of seawater and threaten whole groups of marine life. The reason involves some basic chemistry.

Ocean Acidification. Ocean acidification is a reduction in the pH of the ocean over an extended period of time, caused primarily by an increase of carbon dioxide from the atmosphere. Carbon Dioxide in Seawater; FAQs about Ocean Acidification; The pH Scale

2022年9月19日 · Ocean water has a pH of 8, so it is slightly alkaline, or basic. But that argument misses the point. Acidification refers to how the pH has changed over time: ocean water has gotten more acidic over the past 200 years, dropping by about 0.1 pH units since the start of the Industrial Revolution. That doesn’t sound like much, until you consider ...