PPT-Ocean Acidification

Key understanding Due to the use of unsustainable energy ocean acidification is a rising problem for marine ecosystems The high levels of pH acidity in the water alters the natural chemical bonding process in regards to the building of shells and exoskeletons of marine wildlife The rising level of . Acidification Tolerance of Aquatic Organisms . Analysis. Conclusion & Applications. Data & Observations. Introduction. Different species respond to low levels of pH differently: some of the test subjects were . For tens of millions of years, Earth's oceans have maintained a relatively stable acidity level. It's within this steady environment that the rich and varied web of life in today's seas has arisen and flourished. But research shows that this ancient balance is being undone by a recent and rapid drop in surface pH that could have devastating global consequences.. Ocean Acidification: A Systems Approach to a Global Problem. Lesson 4. Warm up:. How is ocean acidification a global problem?. Is OA a situation that requires a systems study? Why or why not?. What do you think systems thinking is?. Acidification and the Challenges facing t. he American Lobster Fishery. in . a Changing Ecosystem. Richard A. . Wahle. University of Maine | School of Marine Sciences. Maine perilously dependent on one fishery.. Miller chapters 3 & 4, 18. th. Ed.. Day 1. Goals. Students complete virtual owl pellet lab. Students can explain owls’ role in a food web. Students can define. Producer, consumer, decomposer. Students can draw: food web, food chain. Alexandria Boehm . Professor of Civil & Environmental Engineering. Senior Fellow Woods Institute of the Environment. Stanford University. Bruce Steele, commercial sea urchin fisherman on ocean acidification:. A presentation . shown. at the . Comenius. meeting in Uddevalla 2011-10-14. Lake in Svartedalen, . south. . of. Uddevalla, . heavily. . affected. by . acidification. .. Connection . between. . Alison Webb. University of East Anglia. Norwich, UK. Alison.L.Webb@uea.ac.uk. Principal Supervisor: Professor Peter Liss. Effects of Acidification . Pre-industrial. Present. 2100. Turley . & Findlay (2009). Warming of ocean is three dimensional process. Historical trend has been rising sea levels. Thermal expansion of ocean also contributes significantly to sea level rise. Thermal expansion likely to persist for centuries. Climate Change. Management Solutions and Challenges for a Changing System. By: William Adams. ATOC 4800. 17 April, 2017. Table of Contents. I-Coral Reefs. II-Environmental Threats. A. Climate Change. he American Lobster Fishery. in . a Changing Ecosystem. Richard A. . Wahle. University of Maine | School of Marine Sciences. Maine perilously dependent on one fishery.. Lobsters at historic highs, but will it last?. Doney . Woods . Hole . Oceanographic Institution. . Rising Atmospheric CO. 2. IPCC AR5 . WG1 Chap. 6. Doney & . Schimel. Ann. Rev. . Env. . & Res. 2007. Warm . interglacial. Cold . glacial. . What is ocean acidification and why is it happening?. Ocean acidification is when oceans are becoming more acidic because of too much carbon dioxide dissolved in the ocean. . 2. Identify two human actives that contribute to ocean acidification. . Amelia Snow . Dr. Oscar Schofield and Dr. Grace Saba. The CO. 2. Problem. Since 1800s 40% increase. Preindustrial= 280 . ppm. Current= 385ppm. 0.5% increase per year. Ocean absorbs 1/3 CO. 2. in atmosphere.