Thursday, May 6, 2010

The Great White of Ocean Problems

It is a cool August day on the east coast. The wind is unrelenting from the east as it whips the flags. The sun is only peaking thru the dark clouds that are evidence of the vicious storm brewing at sea. The twenty foot waves are unforgiving as the pound the beach. This is what we live for; this is hurricane season. The sand is empty except for a lone sign saying “Beaches closed: No Swimming, but the sea is full of the “crazy” people that ignore this warning, the people who know that one wrong move could prove fatal but still rise with the sun and run to the ocean surfboards in hand. There is an eerie calm that comes over me, as I wait for the next wave to charge in looking to claim another victim. I reach my hand into the water not to feel the sea but to part the debris surrounding me. The same wind that pushes the water into colossal waves also pushes the trash to shore. A quick glance to shore shows that the ignored warning sign has friends; plastic bags, bottles, fishnets, and containers now congregate together on the sand. As I paddle into the monster wave I find I will be enjoying my ride with a few plastic companions. These golden days seem to becoming more and more tarnished with the sad reality of ocean pollution.

The government should clean up ocean pollution and new rules on garbage disposal should be enacted before the reckless disposal of garbage leads to the demise of ecosystems. The government needs to fund clean up missions to remove trash, along with crack down on beach littering. With out this ocean pollution is becoming a very serious issue that has had vastly negative effects on our environment. While some people on Capital Hill argue this is not a serious issue because the effects are not immediately noticeable the more environmentally sensitive can clearly see how important this issue is to the world. With out giving immediate attention to this the way we live right now is in serious jeopardy. The garbage floating through the ocean is like a shark. It is seldom seen and moves swiftly through the waters. Most people are unaffected by sharks on a daily basis but eventually the shark will bite its victim.

The Great Pacific Garbage Patch is a “patch of trash” floating in the ocean located approximately half way between San Francisco and Hawaii. This Patch is estimated to be the size of Texas and contains many types of trash but mostly plastic, which cannot be broken down naturally. This patch has accumulated due to the currents of the ocean carrying the trash from around the sea and keeping it locked in one spinning whirlpool. As Erdman, a scientist from the University of California's Scripps Institution of Oceanography writes, “This giant garbage patch, in addition to plastic, also contains huge masses of fishing nets, which destroys ecosystems around the Hawaiian Islands. But the plastic is really the toxic killer. While it slowly degrades, it turns into increasingly smaller bits. We find a lot of skeletons of seabirds on the Islands and their gut content is just filled with plastic. As the larger animals and marine life eat the smaller animals, this plastic eventually ends up in the human food supply, too.” (Erdman, 2009). The longer this patch goes unattended the more it impacts our food supply until it ultimately makes much of our seafood inedible.

The Great Pacific Garbage patch is comparable to a landfill, only larger then any landfill in existence. As we know the land that the landfill is built on is unusable to humans due to the abuse the land takes. What most people don’t realize is that these patches are having the same effects on the ocean as a landfill would on the land. A scienctist who studies Atmospheric Chemistry and Physics reports that; “The conclusions from this study support the idea that continued emissions in industrialized countries of CFC-11, CFC-12, CFC-113, and CH3CCl3 are still coming from destruction of ODS-containing material” (E. L. Hodson, 2010). This study has found that ozone-depleting chemicals are coming from our landfills. With this “landfill” in the ocean being the largest landfill in existence it is unfathomable how much ozone-depleting chemicals are released from it on a yearly basis. These chemicals need to be stopped in order to fight global warming. With such a large effect throughout the world to go green, we are ignoring one of our largest enemies in the fight.

Not only is ocean pollution having a negative impact on the natural world, it also may start to have a negative impact on the economy. Beaches a crossed The Unites States of America, and the world are a great source of revenue from tourism. Property along the coast is also notoriously known as some of the priciest real estate in the world. With our oceans on their way to becoming toxic waste tourism and property values can diminish rapidly. Ocean pollution is already becoming a harsh reality to those who live by the shore. An oceanographer refers to ocean pollution as an animal. “It moves around like a big animal without a leash. When that animal comes close to land, as it does at the Hawaiian archipelago, the results are dramatic. The garbage patch barfs, and you get a beach covered with this confetti of plastic” (Marks, 2008). While right now it is only a reality during storms as more and more trash is dumped into the sea it will become a daily sight.

Unless we take a proactive approach in stopping this pollution and cleaning up as much pollution as possible we are looking at a scary future. First and foremost the government needs to invest some money into clean up projects. In addition, we can all take small steps as shown by the Natural Resources Defense Council. Correctly dispose of hazardous household products, use nontoxic household products whoever possible, recycle and dispose all trash properly, use natural fertilizers, recycle used motor oil, and reduce plastics. (Natural Resources Defense Council, 2001)

It is clear that we can no longer wait for this problem to impact our lives before giving ocean pollution the attention it deserves. Not only can this have a serious and highly negative impact on our environment and food source but it can destroy and entire economy. A proactive approach needs to be thought up and enacted immediately.

Monday, April 26, 2010

This image shows the endless cycle and movement of pollution. Many people are uninformed on how pollution can move from one habitat to the next. It is commonly perceived that pollution on land only effects that immediate land. What is not understood is that for instance a landfill releases toxic chemicals into the air, these chemicals then enter the clouds. From here these toxins can travel many miles until they are released through precipitation. They can then run off into bodies of water or be re-evaporated and move again. This is a never ending cycle very accurate displayed in the above image.

Thursday, April 22, 2010

Plastic in our Oceans

Plastic is not biodegradable which means it is forever. All of the plastic that has been created still exists today except for small amounts which have been incinerated. When plastic enters the ocean it breaks down into smaller and smaller pieces. The plastic then is able to enter and contaminate our food chain. Plastic that is not broken down such as plastic bags and six pack can holders are another huge problem to wildlife. Fish and birds can become caught, tangled, and choked to death by these items.
Sources and Effects of Marine Pollution

TypePrimary Source/CauseEffect
NutrientsRunoff approximately 50% sewage, 50% from forestry, farming, and other land use. Also airborne nitrogen oxides from power plants, cars etc.Feed algal blooms in coastal waters. Decomposing algae depletes water of oxygen, killing other marine life. Can spur algal blooms (red tides), releasing toxins that can kill fish and poison people.
SedimentsErosion from mining, forestry, farming, and other land-use; coastal dredging and miningCloud water; impede photosynthesis below surface waters. Clog gills of fish. Smother and bury coastal ecosystems. Carry toxins and excess nutrients.
PathogensSewage, livestock.Contaminate coastal swiming areas and seafood, spreading cholera, typhoid and other diseases.
Alien SpeciesSeveral thousand per day transported in ballast water; also spread through canals linking bodies of water and fishery enhancement projects.Outcompete native species and reduce biological diversity. Introduce new marine diceases. Associated with increased incidence of red tides and other algal blooms. Problem in major ports.
Persistent Toxins (PCBs, Heavy metals, DDT etc.)Industrial discharge; wastewater discharge from cities; pesticides from farms, forests, home use etc.; seepage from landfills.poison or cause disease in coastal marine life, especially near major cities or industry. Contaminate seafood. Fat-soluble toxins that bio-accumulate in predators can cause disease and reproductive failure.
Oil46% from cars, heavy machinery, industry, other land-based sources; 32% from oil tanker operations and other shipping; 13% from accidents at sea; also offshore oil drilling and natural seepage.Low level contamination can kill larvae and cause disease in marine life. Oil slicks kill marine life, especially in coastal habitats. Tar balls from coagulated oil litter beaches and coastal habitat. Oil pollution is down 60% from 1981.
PlasticsFishing nets; cargo and cruise ships; beach litter; wastes from plastics industry and landfills.Discard fishing gear continues to catch fish. Other plastic debris entangles marine life or is mistaken for food. Plastics litter beaches and coasts and may persist for 200 to 400 years.
Radioactive substancesDiscarded nuclear submarine and military waste; atmospheric fallout; also industrial wastes.Hot spots of radio activity. Can enter food chain and cause disease in marine life. Concentrate in top predators and shellfish, which are eaten by people.
ThermalCooling water from power plants and industrial sitesKill off corals and other temperature sensitive sedentary species. Displace other marine life.
NoiseSupertankers, other large vessels and machineryCan be heard thousands of kilometers away under water. May stress and disrupt marine life.

Source: Compiled by WorldWatch Institute.