Coral reefs face many problems in the environment, however the major environmental problem they face is turbidity. These shallow coral reefs die as excessive turbidity prevents photosynthesis. This turbidity, can occur naturally. For example, the euphotic zones in oceans and lakes are reduced due to the excessive growth of algae. In addition, coral reefs are severely damaged due to ocean warming, soil erosion, increased UV exposure, and rising sea levels. Overall, coral reefs face many problems that hopefully will be solved in the near future. Cultural eutrophication is the process where it puts excessive nutrients into lakes. In addition, it speeds up the natural eutrophication because of human activities. Eutrophication can be accelerated by human inputs of nutrients through the atmosphere into the eutrophic lakes.These lakes are located between the two extremes of nutrient enrichment, which are called mesotrophic lakes. As a result of eutrophication, turbidity increases through the waterways, plant and animal biomass increase, and the depletion of the body of water increases. Overall, eutrophication affects our waterways by filling them with excessive nutrients and as a result of this, our waterways are turbid and not accessible for the public. The leatherback sea turtle is probably the most endangered of the seven sea turtle species. In addition, it is the largest sea turtle and feeds on mostly jellyfish. This is helpful because jellyfish are extremely overpopulated and this helps control their population. They managed to survive the asteroid that wiped out dinosaurs sixty million years ago, however this time they might not survive. Humans have had a major impact on the extinction of the leatherback turtles. For example, they use a fishing method called trawler fishing. This way of fishing has destroyed the coral that leatherbacks feed on. As a result, they are hunted for leather, and their eggs are taken for food. Unfortunately, they sometimes drown because they are entangled in the fishing nets. Another threat to the leatherback turtle is the pollution of ocean water. They sometimes think that a plastic bag is jellyfish, so they choke to death trying to consume them. Motor vehicles are known to crush their nests, and lights can affect the newly born babies. Now, people are trying to save these animals from extinctions by turning off artificial lights from the beach, discarding plastic bags and picking up trash off the beach, avoiding their nesting areas, and reducing the amount of chemicals.One type of way to fish is through fish factories. In this type of fishing, factory ships are actually fishing vessels that are sent out and designed to catch crazy amounts of fish. These ships are to stay at sea for long periods of time, and are have technology cuts and freezes the fish right after they are caught. This technique is very uncommon and unique to many people around the globe. This way is very sustainable because it ensures that fisheries continue to thrive in marine and freshwater habitats. Another way of fishing is known as hand fishing. This is the most common type of fishing. When you hand fish, you grab the fish from its habitat with your hands. This method is sustainable because the fish are able to be maintained at a constant rate. However, some people tend to overfish, which then causes unsustainability. Overall fishing can be very sustainable, however if you do it incorrectly, it can cause major damage.Currently, the ocean is in a horrendous state and there needs to be many changes to actually make a difference. For example, we can reduce the consumption of energy by taking the stairs, use fluorescent light bulbs, and leave the car at home when possible. One major problem is our oceans is pollution. To help get rid of that, we can use fewer plastic products such as plastic bottles and bags. Another important thing that hurts the ocean is the purchasing of items that exploit marine life. Last but not least, people are to travel the ocean responsibly. Before getting out on the water, humans should practice boating and kayaking. Overall, if we make the changes necessary, our oceans will be back to being the place they used to be.In June 1969, the Cuyahoga River in Cleveland, Ohio caught fire. This river was a river that was polluted with oily wastes, chemicals, and debris. The river fire became a disaster. This incident helped give momentum to a newly emerging national environmental movement. This river was famous for having been so polluted that it “caught fire.” Now, this freshwater river is back to being a great home for animals and a great sight for people to see on vacation. Coincidentally, months before the Cuyahoga River disaster, Santa Barbara, California, had an oil spill from a Unocal Oil Company. It was located on the offshore rig in January 1969. It had soiled 30 miles of California coastline. Unfortunately, it resulted in the killing of sea birds and other wildlife. Oil industry pollution and oily wastes were also a part of the rivers’ problem. Wetlands are severely important features in the landscape that provide a lot of services for people and fish in the wildlife. These wetlands are important to protect because they protect water quality, provide fish and other wildlife with habitats, store the water from floods, and maintain surface water flow during the extreme dry periods. These wetlands are home to many plants, insects, fish and mammals. All of these species are dependent on the wetland so this is why protecting it is a priority. Fortunately, wetlands can function as natural sponges that trap and release surface water, rain, and groundwater. In addition, by protecting wetlands, we can protect our safety and welfare. Protecting wetlands is something that our economy must take seriously in order for us and other animals to stay safe. The Great Pacific Garbage Patch is the collection of marine debris and trash in the Pacific Ocean. This debris is usually litter that ends up in the oceans. The amount of debris in this patch adds up because most of it is not biodegradable. For example, many plastics do not wear down, instead they break into pieces. These patches of litter are mostly made up of these tiny bits of plastic that can not be seen from the naked eye. The seafloor beneath this Garbage Patch is also full of trash. There is no estimate on how much debris makes up the Great Pacific Garbage Patch. This debris, however, can be harmful to to marine life and disturb the marine food webs. Unfortunately, humans do not pick up their trash and this needs to change. Invasive species can threaten aquatic ecosystems by occupying their habitats or taking away their native species. These invasive species most likely show rapid population growth in the absence of natural predators and become very established. Aquatic invasive species can be introduced in several ways: naturally, or as fragments that drift in the water currents. They also could be intruded through human activities by attaching to boats. These invaders pose threats to ecology and the economy. One example of an invasive species is the green crab. This is one of the most unwanted species in the world. This small coastal crab is native to Europe and North Africa. Found in shallow water, generally on muddy, sandy or pebble bottoms or in vegetation. Green crabs prefer sheltered areas on sandy beaches and rocky coasts in saltwater. This crab impacts the ocean by changing the balance between species in the ecosystems and destroying shellfish beds. An example of an invasive species in freshwater is the Japanese skeleton shrimp. This species destroys aquatic habitats by infesting man-made structures and by competing with mussels for food and space. Overall, invasive species severely affect the habitats of animals and threaten aquatic ecosystems.We rely heavily on our groundwater. It is one of the most important sources of water for irrigation. However, groundwater is very vulnerable to pollutants. This contamination occurs when human made products such as ags, oil, and chemicals flow into the groundwater, which then causes it to be harmful and not available for human use. It can have serious health effects. This is almost always a result of human activity. Some other causes are from sanitation systems, sewage, fertilizers, industrial leaks, and landfill. Groundwater quality monitoring systems have been made in order to clean these aquifers and are important components to understand the system that is used. Also, the community can help monitor the groundwater quality. In addition, the economy has developed land zoning maps to see the different scales around the world. Pollutants can be removed from this water by applying techniques that make it safe for use.