They are responsible for transporting the heat from tropics to mid-latitudes. On the other hand, speed is said to be lower in the case of eastern currents (e.g. California Current) which transport cold water to the tropics where this is heated and pushed back to the poles by the western streams. Consequently, ocean surface currents help the Sun energy spread from the equator to the poles ((http://science.hq.nasa.gov/oceans/physical/OSC.html). Swells, breaking surf,

Threats to Ecosystem: Cause and Solution There are various threats to the marine ecosystem. Three of the most common are: (a) Pollution from point and nonpoint sources; (b) Overexploitation of marine stocks that can deplete marine animals; and (c) Global climactic and oceanographic events that contribute to sea level rise, coastal erosion, storm, and intensified sea temperature Pollution Pollution, as threat to the marine system, stems from point and non-point sources. A major

Climate Change on Marine Mammals Sustained scientific observations reveal and alert everyone that climate change has asserted alarming effects on the oceans (Simmonds & Isaac 2007). Scientists agree that these effects are likely to be in the form of alterations in prey distribution and volume. They also agree that the more mobile species of marine mammals may possess enough resilience to adapt to the changes. But the extent of their

Positive Effects of Green Energy Green energy (such as wind, water, and solar power, as well as other sustainable options) has become a hot topic and a "buzz word" recently. Even though it may seem that everyone is talking about green energy, few people are actually doing anything about it. While it has been seen in the news, it has not been seen in the fields and oceans where it can

Oceans on Human Life: Recent economic, political, and environmental developments One of the oldest forms of transport is sailing: long before airplanes or cars were invented, people turned to the sea as method of moving goods and people from one place to another. But oceans still play a critical role in the modern economy. In fact, an estimated one of every 6 jobs in the U.S. is in some way tied

Website Three: http://www.sciencedaily.com. Authority: Respected science-based online magazine Accuracy: (a) since the ocean's food chain is based on "the growth of billions upon billions of microscopic plants" (including phytoplankton), and since new satellite data shows that ocean warming is "reducing these plants" this imperils marine life and ocean fisheries Currency: Data for this Science article take from the journal Nature. Purpose: Global warming is due to rising levels of carbon dioxide (burning of fossil