Since the end of the last ice age 18,000 years ago sea level has risen over 360 feet at the present rate of sea level rise in the next 100 years by conservative estimates the global sea level rise will result in the flooding of lowlands throughout Viet Nam, China, India, Thailand, Philippines, Indonesia, Egypt and elsewhere. Millions of climate change refugees would be created by this sea level rise.
According to Dr. Bill Turrell, leader of the Ocean Climate Group at the Scottish Marine Laboratory in Aberdeen, recent changes in the Salinity of water indicates the largest changes of outflow in the last 100 years which is consistent with models showing the stopping of the pump and the conveyor belt leading to the rapid onset of a global ice age.
When the recent hurricanes and tsunamis have hit coastal areas, those that had living coral refs and mangrove swamps were protected from devastation. Those areas hit by at the same time with that lacked healthy coral reefs or mangrove swamps were totally wiped out.
The decrease in salinity and organic waste production from the microorganism death decrease the pH of the water and makes it more acid which in turns kills the growth cells of coral reefs and has accounted for a 20% reduction in global coral growth in the last year.
Decreases in salinity of the ocean water due to ice melts caused by global warming kills trillions of microorganisms each year causing further organic pollution that further grows the dead zone. The loss of microorganisms from global warming causes the lack of food for krill which in turn causes starvation of 100s of baleen whales every year.
This past year due to global warming it is estimated that over 20% of all coral reefs have suffered over 90% mortality.
Unsustainable fishing practices for shark fins causes the untimely death of over 5 million sharks per year. Approximately 10,000 sea turtles are also killed each year as a result of this fishing activity.
Most sharks die of bleeding to death when harvested for their fins which is painful and wasteful. Demand for sharks fins for sharkfin soup has risen several hundred percent over the last 5 years.
Consumers are beginning to demand sustainable seafood in just the same way that the dolphin-safe tuna became legally mandated. It is estimated that over 85% of the new market demand for sustainable seafood is due to consumer pressure which has in turn created industry ramping-up to meet the demands.
The world’s oceans can supply sustainably approximately 100 million tones of seafood per year. Up until last year the balance of demand (approximately 25 million tons) for seafood was covered the Aquaculture market. Aquaculture production has increased over 50% in the last 5 years. Total demand for the next 5 years is expected to exceed 160 million tons for which aquaculture is expected to meet the demand as demonstrated by a greater than 33% increased in productivity over the past year.
Every time a drag net goes over an ocean area it is just like deforesting in order to catch the monkeys out of the trees, it not that they don’t catch the fish, it’s just that the forests of coral that are destroyed take 100s to 1000s of years to build and often the fisherman come back several times a year to get even more. Even though only several hundreds of such fishing vessels are still operating in this way, several 1000s of square miles are destroyed each year.
Human-Related Marine Pollution
97% of all coral disease is as a consequence of human activities.
Over 90% of all coastal zones worldwide will be developed by 2030.
In Asia and Eastern Africa over 90% of the sewage is discharged directly into the ocean. Ensuring the decimation of much of the coastal coral reef areas and nearby ecosystems.
80% of Marine pollution originates from the land. With Coastal populations doubling by 2050 it doubtful that many coastal ecosystems will be able to survive the resulting pollution without adequate protected areas being development to create living reserves.
Every 10 years the number of dead zones worldwide has doubled to over 200 by 2010. Meaning an area larger that the whole continental United States will be devoid of any life.
More than 250 million people worldwide contract gastroenteritis and upper respiratory disease due to polluted seas.
Toxic waste has led to significant increase in PVC, cyanide and mercury levels in sea water. Increases in freshwater have even been greater. The entire upper US fisheries is in the process of being shut down due to an aggressive virus that is spread through fish stressed by environmental pollution in the inland waterways.
Solid wastes have accumulated in the deep oceans to where sonar can track huge underwater storms by looking for city-sized piles of plastic floating the ocean floor.
Radioactive waste disposal has led to increase in the background counts of seawater.
The number of severe weather phenomena and climate fluctuations over decades will probably increase dramatically during the ice age transition (about 100 years).
Global warming has increased the melting of the Greenland ice shelf to where a shut down of the pump that moves the ocean currents is expected within the next 10-20 years that could cause a global ice age.
A 2-4 degree rise in ocean temperature is predicted to have everlasting consequences on what lives in or on the ocean.
Hurricanes and other water related weather phenomenon have increased due to global warming in the past year by over 100%.
Young people making a difference in their communities through environmental actions towards a sustainable Earth.