Bioenergy is one of the sources to reduce the greenhouse gas (GHG) emission and as sources of fuels. Energy can be divided into two types that are renewable and non-renewable. Renewable energy is come from natural sources such as wind, solar and hydroelectric. This energy will not end and does not have limited sources. While non renewable energy is energy that comes from resources that will be ending at the end. Petroleum, coal, and natural gas are example of energy non-renewable energy. So that, as alternative to replace petroleum, the biodiesel from seaweed is used which it comes from sources of renewable energy. Besides that, when use petroleum, it will give many disadvantages such as greenhouse effect, global warning and increase composition of carbon dioxide (CO2) in atmosphere. An atmospheric pollution comes from petroleum diesel when their combustion gives a primer or source for GHG (Sharif et al., 2008). Biodiesel is defined as a fuel made up from monoalkyl esters of long-chain fatty acids derived from bio-oils, usually fatty acid methyl esters (FAME) and can be produced from vegetable oil (Speranza et al. 2015). Macro algae can produce the biodiesel and has a lower lipid compare to the microalgae (Sharif et al., 2008).
In biology, seaweed is macro algae that live in fresh water and sea water that act as a primary producer in the water. It looks plant-like organisms that attach to any substrate such as rock that make photosynthesis to produce glucose as a their food.
According to Harrison Eutrophication is the excessive production of algae and higher plants through the enrichment of waters by nitrogen and phosphorus. Phosphorus in the form of phosphate is the limiting nutrient as the amount of biologically available phosphorus is small in relation to the amount needed for algal growth.
Harrison states that sources of nutrients can be discrete, (sewage), or diffuse, (farmland fertilizers).
One issue found is the creation of smelly phytoplankton that makes murky unclear waters along with aquatic impurities. Moreover, the reduction of growth due to poor light conditions and dying plants make it difficult for predatory fish to hunt leading to overpopulation. (Chislock, 2013)
Eutrophication can be found in many of our water resources such as ponds, estuaries, and bays. One region with high areas with eutrophication is in a lake shared by Kisumu, Kenya and Kampala, Uganda.
A hydrilla grows a long steam that has many leaves on it as well as tiny white flowers on them which float above the water. They are an aquatic plant which means they live in water such as clean water, including lakes, ponds, rivers, streams, and marshes. Seen mostly in the Southeast of Florida and in their habitat they form dense mats of vegetation, can grow with little light, and more efficent in taking nutrients than other species. Florida faces many problems within their water bodies and waterways. The aquatic plants pollute 96% of the public lakes and rivers.
Fish use the grass for shelter, to hide and protect themselves. Next in the food chain are copepods, which are very small organisms in the animal community, which are mostly referred to as zooplankton. These zooplankton consume the algae and bay grass. The next link in the food chain are anchovies. Anchovies consume the zooplankton.
In the denouement, this group wholeheartedly believes that nuclear power plants are our future. Again, nuclear plants are more efficient than any other fossil fuel such as oil, coal and natural gas. They are also more reliable. Nuclear energy has no emissions and a cost that is better for the consumer.
Adela Papiez
Granitz
Accelerated English 9
22 March 2017
Outline
Marine Biologists: Saving the Environment One Animal at a Time
Thesis: Marine biology is a demanding job requiring working with marine animals, and having many qualifications and courses to take, as well as years of training, with many fulfilling rewards.
Generally, marine biology is the study of organisms, their relationship to the environment, and their behavior, in addition to studying the chemical aspects of bodies of saltwater ("At A Glance" & "NOAA Fisheries").
The purpose of this lab was to test the effect of pollution on algae growth. Through a series of experiments that lasted a month, four of the six hypotheses were proven to be correct or partially correct.
The first hypothesis stated that if 0.5 mL of salt was added to algae, then the algae would grow slower than the positive control. This was proven correct, as shown by the difference of the data from the positive control and the container with 0.5 mL of salt in it.
Nuclear power plants provide cheap, clean, and efficient energy and new technology might soon overcome the current drawbacks. Disasters like the ones at Chernobyl and Fukushima have long given nuclear energy an ill-deserved reputation. It produces no greenhouse gases and only trace amounts of radiation at a comparable price to coal power. However, the large initial cost and the potential for meltdowns has prevented nuclear energy from growing to supply a significant portion of the world’s electricity. Safety features on current nuclear reactors make a nuclear disaster highly unlikely, but technological advances could soon negate those risks completely.
Transportation can cause a whole lot of pollution but other types of technology can too such as electricity. Electricity can release carbon dioxide just like transportation which is bad because we already have so much carbon dioxide in the air due to transportation. To make electricity, fossil fuels and nuclear power plants produce harmful gases that can cause a whole lot of damage to the environment. Nuclear power plants use ores to make a great deal of electricity and are very dangerous. Nuclear plants are unstable due to the material they use which unfortunately can cause explosions.
Pro 1
A Con (sorta) is the price of solar energy, or is it? according to TheWeek.com a big reason why solar energy is so expensive in the USA right now is because of past years demands, Quote “In 2011, Germany boasted more than 21 times the solar power, per capita, of the U.S, which helped to drive down the price. And given that imbalance, American companies had a comparatively tougher task recruiting customers, so they spent 10 times as much as their foreign counterparts did on marketing costs.” This is horrible for America because we are losing out on essentially ( after initial costs ) free energy that we could be using to power our homes, computers and other things
It is commonly known throughout human history that the energy used is burned from coal which creates biomass. During the Industrial Revolution, coal was an essential need to everyone, hence the discovery of oil as a substitute. Yet, the mass formation from the unearthing of oil causes more damage than benefits for the planet. Humanity had never seen a more compatible source in which came a higher demand for oil. As the public has urged to generate more oil, scientists theorized that fossil fuels will eventually run out, making way for a renewable energy route in the future (Mason).
What is global warming?
Global Warming is the increase of Earth 's normal surface temperature due to impact of greenhouse gases such as carbon dioxide radiations from lighting fossil fuels or from the removal of trees which lure heat that would otherwise get away from Earth. This is a kind of greenhouse impact. Global warming is the determined and relieved increases in the mean temperature of Earth atmosphere and oceans.
Fossil fuels
Fossil fuels are NOT a renewable energy resource it will finish up one day
As once we 've burned them all, there isn 't any more, and our consumption of fossil fuels has nearly doubled every 20 years since 1900.
This is a particular problem for Oil, because we also use it to make plastics and many other products
Coal, Oil and Gas are called "fossil fuels" because they have been formed from the fossilized remains of prehistoric plants and animals.
“Renewable energy resources that is naturally regenerated over a short time scale and derived directly from the sun, indirectly from the sun or from other natural movement and mechanisms of the environment. Renewable energy does not include energy resources derived from fossil fuels, waste product from fossil sources, or waste products from inorganic sources.”
There are a few types of renewable energy sources.
1) Wind Energy
2) Biomass
3)
Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves, and geothermal heat. It is the energy which is abundant in nature. The sun is the ultimate source of energy. Almost all the energy that we use eventually comes from the Sun. The exception is the heat of radioactivity deep inside the Earth, which is ultimately responsible for processes taking place inside the Earth.
