Positive And Negative Effects Of Climate Change On Marine Ecosystems

Some of the carbon dioxide is being combined with our oceans to make up carbonic acid. Thus decreasing the PH of the oceans, and with this acidification it is known to be dangerous for many reason. Many of the large animals are losing key nutrition, it is hindering photosynthesis and is even wiping out existing ecosystems. The one key group that is harmed the most is creatures that are classified as Calcifiers. They are one of the most common animals in the sea, which means that, if the acidity of the oceans continue to rise, a significant chunk will die out or have to adapt rapidly to the environmental change. The reason they are in the most danger is because with the ocean becoming more acidic it is eroding the shells off of the sea

“Since the beginning of the industrial era, the ocean has absorbed some 525 billion tons of CO2 from the atmosphere, presently around 22 million tons per day” (Ocean Portal, n.d). This number is expected to increase forevermore as atmospheric carbon dioxide levels increase and the effects of Climate Change worsen. At first, the idea of our oceans absorbing carbon dioxide from the atmosphere may sound great, however, scientists have been quick to learn otherwise. High concentrations of carbon dioxide in oceans can have detrimental effects on the ocean chemistry and marine ecosystems (Hardt; Safina, 2008). Marine ecosystems are greatly complex and depend on every marine organism to function properly, any change can put the whole ecosystem at risk. For example, the increase of carbon dioxide in our oceans is responsible for the dissolving of “brittle star” skeletal parts, which has in effect caused food scarcity for many fish, crabs, shrimp, and other starfish (Leu, 2013). Furthermore, these marine ecosystems are very important to humans- being the primary food source for millions around the world and having an economic market worth trillions of dollars (Hardt; Safina, 2008). Part of keeping these ecosystems safe is to understand how they work and how projected changes can harm marine organisms.

Over the years Carbon Dioxide has been significantly increasing from human activity. CO2 has a concentration of about 400 ppmv (parts per million volume). Its concentration in the atmosphere was about 280 ppmv before the Industrial Revolution, now it has increased immensely to about 380 ppmv in 2006. Many have said Carbon Dioxide has been the main reason or cause of global warming; saying that if we produce too much of this greenhouse gas it can create a global climate change. Even though carbon dioxide affects the temperature of the atmosphere it also affects the acidity of water specifically in the ocean.

Another factor of ascending sea levels is the increase in temperatures (3). Eissa and Zaki implies that “a considerable number of many species will be threatened with a continuous increase in sea levels to a certain point that the animal or species could become extinct” (The impact of global climatic…” 2). Sea levels are rising at very accelerated rates, and until the water keep rising, they will become very harmful to the human population and many marine organisms. However, increasing temperatures is one of the main factors of climate change. Johansen insists that “the warming of the world’s oceans has not only affected the animals who live above the surface, but also the ones who live below” (“Marine Life…” 1). Increasing temperatures are mostly caused by many human activities such as the release of fossil fuels emissions and greenhouse gases. The two main processes that cause increasing temperatures are Climate Change and the Greenhous effect. These can be very harmful to the marine population and permanently extinct them. According to recent studies, NOAA has discovered that seawater temperatures are increasing by about 0.1 Celsius, and many organisms confronted with this change could be in great danger (NOAA 2). In addition to increasing temperatures and sea levels rising, another factor would be ocean acidification. Global Issues portrays that” ocean acidification is caused by substantial amounts of carbon dioxide which is caused by greenhouse emissions” (Climate

Ocean Acidification is a process that occurs everyday and majorly affects our planet, but most people don’t even realize it exists. Though it can technically be argued that Ocean Acidification has some benefits for the planet, most of the time the effects of this process are very poor and negatively affect the entire world around us. Human evolution has played a major role in contributing to Ocean Acidification. Whenever humans use energy we release Carbon Dioxide into the atmosphere or also known as CO2. This can be in the form of burning fossil fuels from the ground or the removal of national forest by burning. CO2 is a greenhouse gas, which means whenever we can emit it in large quantities or unnatural amounts it can have negative effects on the atmosphere. These high levels of CO2 in the atmosphere result in climate change and more specifically Ocean Acidification. Ocean Acidification occurs when excess Carbon Dioxide is absorbed into the ocean. When this process takes place it can completely disturb the chemical balances of the water. For example, it can reduce pH levels, Biodiversity, and the abundance of calcifying species.

This increase in oceanic inorganic carbon has offset the seawater carbonate chemistry by causing increasing concentrations of CO2 and bicarbonate, while causing decreasing concentrations of carbonate and pH levels (Dedmer 2013). Rost and colleagues (2008) express that emissions of fossil fuel have caused an immense increase in the levels of atmospheric CO2, which are then deposited into the surface water of oceans. This increase in carbonic acid is in turn decreasing the pH balance, which poses a threat to marine organisms.

The marine biome is tremendously impacted by the effects of climate change. The sea levels have been rising, the water temperature has been rising, organism’s habitats have been destroyed, the tides are coming in stronger, the ocean is acidifying and many more things that will end up impacting all of us and the rest of the world in a very big way. Climate change is real and the proof is right in front of us. Flooding in major cities, el nino, more frequent natural disasters, wildfires, heat waves, and so much more. The facts are right there, we have just been too blind, too egotistical, to imperfect, to realize that we have changed the world. We did not mean to but we did so we need to fix what we caused.

Since the beginning of the industrial revolution, mankind has slowly increased the total greenhouse gas emissions that enter the atmosphere. Over time, this pollution began to add up. Now planet Earth is struggling to maintain its health with the combined forces of global warming and ocean acidification looking to bring demise. From all portions of the world, troubling changes are emerging in the chemistry of our oceans’ waters. The oceans takes in around a quarter of the Carbon Dioxide that mankind releases into the atmosphere every year, so as atmospheric Carbon Dioxide levels rise, so do the

Humans are changing the climate right now through deforestation and burning fossil fuels which is also creating ocean acidification. Kolbert writes in The Sixth Extinction that, humans are burning an excessive amount of fossil fuels through coal and natural gas into the air which added tons of carbon into the atmosphere. “SINCE the start of the industrial revolution, humans have burned through enough fossil fuels—coal, oil, and natural gas—to add some 365 billion metric tons of carbon to the atmosphere” (Kolbert, p. 113). It is possible to say that through these burning fossil fuels, ocean acidification are occurring, too, because too much carbon dioxide is being released into the atmosphere and the ocean is absorbing the air into the ocean. Kolbert writes, “Thanks to all this extra CO2, the pH of the ocean’s surface waters has already dropped. Assuming that humans continue to burn fossil fuels, the oceans will continue to absorb carbon dioxide and will become increasingly acidified” (Kolbert, p. 113-114). In addition, our emissions of CO2 modify our atmosphere. Whereas, the gases from the atmosphere get absorbed by the ocean and gases dissolved in the ocean are released into the atmosphere killing most of our species. For example, many mollusks, corals, and single-celled creatures called foraminifera use ingredients in seawater to build their shells and other hard parts and these

“How acidification threatens ocean from the inside out: Carbon dioxide emissions are making the oceans more acidic, imperiling the growth and reproduction of species from plankton to squid”, by Marah J. Hardt and Carl Safina addresses the dangers of increasing acidity in the ocean caused by carbon dioxide. Hardt, a research scientist and writer, is the founder of Ocean Ink. Safina, an adjunct professor at Stony Brook University, is the founding president of the Blue Ocean Institute.

Coral bleaching is happening because of the high sea temperatures. Coral bleaching leads to coral death and causes habitats to be loss to species in need. There is carbon dioxide is extremely concentrated in the atmosphere which increases the absorption of carbon dioxide in the ocean. Ocean acidity is subject to become a more frequent trend as the carbon dioxide continues to increase. The increase in ocean acidity affects the plankton, shellfish and mollusks. Coral are very sensitive to the acidity which makes it difficult for them to create a maintain its structure for species that need that

Since the beginning industrial revolution the ocean has suffered, and with that the ocean plants and animals have suffered as well. Ocean acidification has been the main cause of all these marine life problems. Anthropogenic activities alone have increased atmospheric CO2 by a third. Humans are doing things such as deforestation, land use changes, and the burning of fossil fuels for energy. The burning of fossil fuels accounts for 37% of the U.S. CO2 emissions. If just in the United States we are producing that much CO2, just imagine how much CO2 we are producing world wide from burning fossil fuels. Carbon Dioxide is not just affecting the atmosphere it is affecting the oceans and the creatures living in the oceans. Since the industrial revolution

Carbon dioxide is a greenhouse gas that we exhale in our daily lives. Plants use carbon dioxide to create oxygen that all mammals use. However, carbon dioxide can also change the chemistry of the ocean, this is often referred to as ocean acidification. The excess carbon dissolves into oxygen in the water, producing a chemical called carbonic acid. This acid causes the ocean to become more acidic. In the eighteenth century, the pH was 8.07 which was slightly basic. Currently, the pH is around 8.01 this is about a twenty-five percent increase in acidity. (National geographic) While this slight change may not seem outrageous, it is causing multiple marine life struggles. The acid melts the shells of pteropods causing a low supply of food that would support larger fish.

Without the regulation of carbon dioxide the excess CO2 that is emitted by civilians and companies, disrupts mother nature’s carbon cycle. The carbon cycle, in simple words, is the process in which carbon and CO2 is recycled through earth’s environment, so it is no surprise that we pollute the ocean as much as we pollute the sky because they are both part of the environment we live on. Global Warming has enormous effects on the ocean, up to 30-40% of the carbon dioxide we release into the atmosphere gets dissolved into oceans, rivers, and lakes (Millero, Frank J. (1995)). The new intake of CO2 into the bodies of water reacts with the water to form carbonic acid, which starts a process called ocean

The main factors in this climate change are observed to be the increase in temperatures and the resulting acidification of the oceans. The previously mentioned changes and others in the report are readily observable, such as the uptake of anthropogenic carbon since 1750 that has led to the ocean becoming more acidic, with an average decrease in pH of 0.1 units and in some instances blatantly obvious, even to the average layperson. It is difficult to conclude what the rate of change in the future will be and the effects of observed ocean acidification on the marine biosphere.