One of the biggest problems on our planet at the moment is the 79 million tons of carbon dioxide being released into our atmosphere every day. According to the European Project on Ocean Acidification, one third of all the Co2 that has been released into our atmosphere has been absorbed by the world 's oceans. Without the immense size of our oceans absorbing all this CO2, our atmosphere would suffer from extreme global warming with devastating effects. However, the downside of our oceans absorbing most of the CO2 is that it threatens the health of our oceans and the animals inside it. It all starts off when the CO2 from the atmosphere is dissolved into the oceans.
When CO2 reacts with water molecules, it produces carbonic acid (H2CO3). Hydrogen ions (H+) detach from carbonic acid, leaving bicarbonate molecules (HCO3-) free to float. High amounts of CO2 dissolving in the oceans results in a higher concentration of the free hydrogen ions, reducing the pH of the water and creating a more acidic solution. The chemical equation of carbon dioxide and water is as follows: CO2 + H2O H2CO3 HCO3- + H+ Shelled marine life like oysters, crabs, and shrimp rely on carbonate (CO3-2) present in the water, to bind with calcium ions (CA+2) to form calcium carbonate (CaCO3). The equation is as follows:
Madin begins her article by introducing the new study about how marine organisms’ shells deal with ocean acidification. Ocean acidification is where excess CO2 dissolves in the ocean and
Castello Argonese, a tiny island in the Tyrrhenian Sea gives us an enlightening glimpse of Earth in 2100. Chapter six of the book The Sixth Extinction by Elizabeth Kolbert, is solely devoted to her experience in these waters where the vents on the sea floor bubbled up almost 100% carbon dioxide. She talks about the consequences of constantly burning fossil fuels to add about 365 billion metric tons of carbon into the atmosphere and how it could lead to our own demise. The thing about carbon dioxide is that the moment it interacts with water, it becomes an acid which can be deadly to the animals living in these oceans obviously, but also to organisms above sea which includes humans. Elizabeth Kolbert wants us to understand that our actions have tragic consequences and we too will be part of that tragedy if we don’t stop now.
Reactions in the human body produce hydrogen peroxide as a product (1). Since hydrogen peroxide is poisonous to the human body, catalase catalyzes hydrogen peroxide into water and oxygen (2 H2O2 → 2 H2O + O2) (1). According to the collision theory, a reaction can only occur if particles collide with sufficient energy to overcome the activation energy and with correct geometrical orientation (3). Increasing temperature increases the kinetic energy of the particles which means that an increase in temperature will increase the speed of the hydrogen peroxide and the catalase molecules which
Ever since the industrial revolution commenced, around one third of the carbon dioxide released by human interference has been absorbed by the ocean, which is one of the reasons of the drastic change in climate as well. Without the ocean absorbing carbon dioxide, the carbon dioxide n the atmosphere would be drastically higher, with possibly increasing the levels of climate change. The point of the research is to see how will the pH affect the organisms in the marine ecosystem and does carbonation affect an organism’s mass and form. Many organisms that are part of the marine food chain are going to be affected by ocean acidification due the levels of acidity deteriorating the calcium carbonate within the animal. It turns out
Examples of negative local practices are the usage of poison/explosives and overfishing. Overfishing as the name suggests, is fishing a certain fish to an excess amount, decimating the population. This could put multiple organisms’ populations at risk and populations may possibly go extinct. Another practice that negatively impacts the ocean is the usage of poison and explosives. Obviously, the poison that is used in fishing (mainly cyanide) is harmful for the ocean because it may poison other fish over the years.
by Brett Garling from the Mission Blue Sylvia Earle Alliance, states that factory farming contributes to the sea temperature rising and ocean acidification because the rising of atmospheric temperature is also rising global ocean temperatures, that leads to the widespread of coral bleaching. He says this is a problem because bleaching slows down coral growth which makes them vulnerable to catch a disease, and later leads to large-scale reef die-off(Garling). Also Garling states that a “greater concentration of carbon dioxide in the atmosphere is increasing the acidity of the global ocean,handicapping the extensive roster of marine organisms that build shells or
Contamination with trace metals has become a great concern around the world, especially in developing countries including India (Alagarsamy, 2006). With the rapid industrialization and economic development in coastal region, these metals are to be introduced to aquatic environment (Feng et al., 2004; Romano et al., 2004). Contaminated marine sediments have been recognized as a very important deposit for persistent toxic substances (heavy metals and xenobiotic organic compounds) released into the aquatic environment from various sources. Identification of the natural and anthropogenic sources of heavy metals is an important task in marine pollution research (Esen et al., 2010). Previous studies have shown that human exposure to a high concentration