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Enter Title Here (PDF)
Enter Title Here (PDF)

... ocean fertilization (OF), a prohibition on OF, except for an OF-related activity new to international law, i.e., "legitimate scientific research", an “Assessment Framework for Scientific Research Involving Ocean Fertilization”, a definition of marine geo-engineering, a definition of marine scientifi ...
Earth Science Chapter 20
Earth Science Chapter 20

... • Submerged volcanic mountains at least 1000 m high. • Submerged volcanic mountains less than 1 km are called abyssal hills. • Seamounts and abyssal hills are generally associated with hotspots. • Those that rise above the surface of the ocean form islands such as Hawaii & the Canary Islands. ...
oceans
oceans

... – Similar fossils and rock formations on different continents ...
Marine Zones The life in a marine ecosystem depends on water
Marine Zones The life in a marine ecosystem depends on water

... deepest parts of the benthic zone do not get any sunlight. They are also very cold. Animals, such as fishes, worms, and crabs, have special adaptations to the deep, dark water. Many of these organisms get food by eating material that sinks from above. Some organisms, such as bacteria, get energy fro ...
PDF: Printable Press Release
PDF: Printable Press Release

... chosen for the honor for her leadership in research aimed at understanding the role of biological processes in the ocean’s mid-water “twilight zone” and their influence on carbon and nitrogen cycles in the ocean. “Humans release billions of tons of carbon dioxide to the air each year through the bur ...
Unit 3 Geology - Manatee School For the Arts / Homepage
Unit 3 Geology - Manatee School For the Arts / Homepage

... another, the magma rises along a rift zone and spreads out at the surface building new sea floor. The age of the rocks increases as one moves away from the rift zone. The midoceanic ridge is the primary site for sea-floor spreading. Earthquakes and volcanoes are where seafloor spreading is occurring ...
Using Isotopes to Understand the Oceans and Climate Change
Using Isotopes to Understand the Oceans and Climate Change

... Oceans. Surface ocean pH has declined by 0.1 unit since the onset of the industrial revolution; most of that change occurring over the last 30 years. By the end of this century, surface ocean pH will drop by another 0.3 to 0.4 units, which represents a 100 to 150% increase in hydrogen ion concentrat ...
Slide 1
Slide 1

... The continental slope is located just seaward of the continental shelf. Averaging only about 20 kilometers in width, it marks the boundary between the continental and oceanic crusts. The slope often has deep channels cut into them. These occur at time when the world’s oceans are low and rivers cut d ...
Project EARTH-16-HLJ1 - Department of Earth Sciences
Project EARTH-16-HLJ1 - Department of Earth Sciences

... Office, at the National Oceanography Centre in Southampton and at Ifremer in Brest, France. The student will be part of the Oxford Physical Oceanography group, which straddles the gap between the Earth Sciences and Physics Departments. They will work closely with other members of the group who are a ...
Natural causes of climate change
Natural causes of climate change

... is the most abundant greenhouse gas in the atmosphere. ...
Sea Floor Mapping Lesson Plan Part 2
Sea Floor Mapping Lesson Plan Part 2

... The ocean has many topographical features on land and under the ocean. Key Concepts National Science Standards  Lithospheric plates on the scales of continents and oceans constantly move at rates of centimeters per year in response to movements in the mantle. Major geological events, such as earthq ...
monsters of the deep
monsters of the deep

... relationships between these organisms have not been well-studied. Cold-seep communities are surrounded by a much larger ocean environment. Very little is known about interactions between cold-seep communities and organisms in other ocean habitats. Ocean habitats are usually categorized into zones: I ...
PPT
PPT

... Weathering of Carbonate Rocks 1. Carbon dioxide is removed from the atmosphere by dissolving in water and forming carbonic acid CO2 + H2O -> H2CO3 (carbonic acid) 2. Carbonic acid is used to weather rocks (e.g. rain), yielding bicarbonate ions, other ions, and clays, which are dumped into ocean (e. ...
Chapter 3 – The Dynamic Earth Review Ques ons
Chapter 3 – The Dynamic Earth Review Ques ons

... –  The  thin  layer  of  the  Earth  upon  which  tectonic   plates  move  around  is  called  the   a)  b)  c)  d)  ...
Marine Provinces
Marine Provinces

... Mostly traverses the middle of ocean basins A topographically high mountain range Entirely volcanic in origin Associated with plate divergence In the Pacific Ocean, called the East Pacific Rise In the Atlantic Ocean, called the Mid-Atlantic Ridge Internet flybys of portions of the mid-ocean ridge ...
Presently
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... JTF Activities: the green cable initiative  A wide network of mini-observatories could be established at many places across the world's ocean floors to measure these important parameters accurately over several decades  The initiative addresses two main issues: a) need for sustained climate-quali ...
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... Long wavelength wave produced by the sudden movement of a very large volume of water  Convergent plate boundary, abrupt slippage of one plate against another results in an underwater earthquake and then a tsunami ...
Part 2 Notes
Part 2 Notes

... – The part of the pelagic environment that overlies the ocean floor at depths greater than 200 m – Largest marine environment (75% of water) – Loosely described as ‘deep sea’ – Cold waters, high pressure, no light – Life adapted to darkness and scarce food • Drifting or slow swimming, reduced bone & ...
Intertidal Zone
Intertidal Zone

... – The part of the pelagic environment that overlies the ocean floor at depths greater than 200 m – Largest marine environment (75% of water) – Loosely described as ‘deep sea’ – Cold waters, high pressure, no light – Life adapted to darkness and scarce food • Drifting or slow swimming, reduced bone & ...
Ocean Features Objectives and HW
Ocean Features Objectives and HW

... D. spreading of new crust created by volcanic activity near a mid-ocean ridge ...
Chapter 14 – The Movement of Ocean Water
Chapter 14 – The Movement of Ocean Water

... Ocean Currents – The stream like movement of water in the oceans that are influenced by many factors. Thor Heyerdahl – A Norwegian explorer who proved that people from Peru could have migrated to settle Polynesia by following the ocean currents of the Pacific. Surface Currents – The horizontal movem ...
highest species diversity of all fresh water ecosystems.
highest species diversity of all fresh water ecosystems.

... ecosystems. • many species of amphibians, reptiles, birds (such as ducks and waders), and furbearers can be found in the wetlands • There are also salt water wetlands and marshes. ...
Teacher Notes - Science with Mrs. Lambert
Teacher Notes - Science with Mrs. Lambert

... Name _________________________ ...
In an ocean
In an ocean

... These arched structures can form when ocean water erodes rock. ...
Chapter 14 The Ocean Floor
Chapter 14 The Ocean Floor

... until the late 1800’s  As technology becomes better, it allows us to study what happens underneath the oceans  Oceanography  a science that draws on the methods and knowledge of geology, chemistry, physics, and biology to study all aspects of the world ocean ...
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Ocean acidification



Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere. An estimated 30–40% of the carbon dioxide from human activity released into the atmosphere dissolves into oceans, rivers and lakes. To achieve chemical equilibrium, some of it reacts with the water to form carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to give a bicarbonate ion and a hydronium ion, thus increasing ocean acidity (H+ ion concentration). Between 1751 and 1994 surface ocean pH is estimated to have decreased from approximately 8.25 to 8.14, representing an increase of almost 30% in H+ ion concentration in the world's oceans. Since current and projected ocean pH levels are above 7.0, the oceans are technically alkaline now and will remain so; referring to this effect as ""decreasing ocean alkalinity"" would be equally correct if less politically useful. Earth System Models project that within the last decade ocean acidity exceeded historical analogs and in combination with other ocean biogeochemical changes could undermine the functioning of marine ecosystems and disrupt the provision of many goods and services associated with the ocean.Increasing acidity is thought to have a range of possibly harmful consequences, such as depressing metabolic rates and immune responses in some organisms, and causing coral bleaching. This also causes decreasing oxygen levels as it kills off algae.Other chemical reactions are triggered which result in a net decrease in the amount of carbonate ions available. This makes it more difficult for marine calcifying organisms, such as coral and some plankton, to form biogenic calcium carbonate, and such structures become vulnerable to dissolution. Ongoing acidification of the oceans threatens food chains connected with the oceans. As members of the InterAcademy Panel, 105 science academies have issued a statement on ocean acidification recommending that by 2050, global CO2 emissions be reduced by at least 50% compared to the 1990 level.Ocean acidification has been called the ""evil twin of global warming"" and ""the other CO2 problem"".Ocean acidification has occurred previously in Earth's history. The most notable example is the Paleocene-Eocene Thermal Maximum (PETM), which occurred approximately 56 million years ago. For reasons that are currently uncertain, massive amounts of carbon entered the ocean and atmosphere, and led to the dissolution of carbonate sediments in all ocean basins.
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