A spill in any of the deep sea areas would reduce the biodiversity of that area through reductions of bird populations, fish-stocks and populations of marine mammals. All of which are already under severe threat of over fishing and habitat disturbance without this imposed threat. Furthermore the contamination of coastal and coral ecosystems will all lead to to damage on the livelihoods of fishermen and people involved the local tourism. The 2010 Deepwater Horizon oil spill in the Gulf of Mexico has been described as the worst environmental disaster in the United States, releasing about 4.9 million barrels of crude oil making it the largest accidental marine oil spill. Most of the impact of this was experienced by the marine species.
Aquatic Invertebrates: Adaptations and Feeding Guilds INTRODUCTION Global warming and human's authoritative influence on the environment such as deforestation, pollution etc. are taking a bad toll on the diversity of the ecosystem. Global warming which has brought about increase in the temperatures is disturbing the natural cycle of the ecosystem. This has brought upon an increased droughts throughout the world. The droughts and increased heat has had negative impacts on local aquatic invertebrates.
One major threat is that coral reefs are under huge stress due to the impact that human activities are having and in fact already 1/5 of the world’s coral reefs are so damaged that they are beyond repair. The increase of average global temperatures is leading to an increased rate of ice cap melting. This is due to global warming, making a global threat to all ecosystems including the coral reef. The reason for this is that the melting of the ice caps releases more fresh water into the oceans, reducing salinity making sea level rise. Due to sea level rising coral reefs are getting destroyed, as they cannot survive in water above 25m.
To add to this these methods need vast amounts of energy for extraction, causing the high extraction cost and with this also pollute greatly as the oil is extracted and so raise CO2 and other GHG emissions before the fuel is even burnt. Some of the environmental cost in these areas would be evident. The Canadian Tar Sands, Arctic and the marine ecosystems in the Gulf of Mexico are rich in biodiversity and pristine areas of wildlife and any spills of oil in these areas could be disastrous. The Arctic tundra is very sensitive to human interference and the Canadian Tar Sands is home to thousands of species of animals and is one of the largest bird migration centres in the world, millions of birds use this areas every year and groundwater depletion is another major problem as groundwater needs to be pumped out during mining operations otherwise flooding will occur. Reducing ground water levels will have consequences on the wider ecosystem and it will affect wetlands.
But if my opponents did any research, they would realize that there is plenty of evidence to show that global warming is a real threat to this earth. In his essay “Now Or Never”, Bill McKibben writes: Consider hydrology, for instance. Warm air holds more water vapor the cold air, so there is an increase in evaporation in dry areas, and hence more drought—something that has been documented on every continent. Once that water is in the atmosphere, it’s going to come down someone—and indeed we have seen the most dramatic flooding ever recorded in recent years. In 1998, 300 million humans, one in twenty of us, had to leave their homes for a week, and month, a year, forever because of rising waters.
The relentlessness of these effects on the larger economy depends on numerous issues, including the disaster itself, the pretentious area and the volume of national and regional institutions to provide relief and begin efforts to reestablish surroundings. When it came down to it, “Hurricane Katrina’s damage affected not only the U.S. Gulf Coast, but the national and global economy as well” (“The Effect of Natural Disasters on the Economy” 1). The disastrous storm restructured the movement of goods and service, the world prices for energy, food trade, building materials to rebuild what have been damaged, individual spending choices, and company incomes. Therefore, “natural disasters always alter the building blocks of economic productions” (“The Effect of Natural Disasters on the Economy” 1). Personal misfortune through injury or death decrease the size and eminence of work in the labor force.
The main water supply of the Central Valley would cease to exist, thus leaving its inhabitants stranded and longing for a solution. Hence, if the Delta were to be eliminated through erosion or earthquakes, the amount of available water would diminish for most of California. For example, if we encountered a catastrophic earthquake, it could break down levee walls and within hours bring in salt water from the San Francisco bay. The salt level in the water ways would be detrimental to not only the drinking water but, to the wildlife and its ecosystem as well. Furthermore, it would also have a heavy influence on the amount and quality of farming.
2013).Pharmaceutical companies sometimes place active chemicals and waste into groundwater sources, in which almost all of the groundwater may be untreated which most likely cause contamination. (Herber, 2002). Abstract: Increase in the emissions of carbon dioxide by burning fossil fuels is the largest cause of environmental down grading resulting not only in global warming but also causing acid rain which alters the pH balance of ground water. Water is a universal solvent; however, its dissolving properties are very sensitive to changes in temperature and pH. Global economic growth has, unfortunately,
Big businesses are releasing harmful chemicals into the atmosphere and oceans. As a result the ozone layers are thinning and creating unprecedented hotter climates in many regions that negatively affect the ecosystems that are not used to the increase in heat. So in Conclusion, David Suzuki’s theory that human civilization is in a war to save this planet is very justified and necessary especially at his day and age where the destruction of earth has become an all to real reality. If human beings have any chance of saving this world they must first work together not as people of different nations but as a world community in finding alternative environmentally safe energy sources to ensure the survival of the human race and wildlife for many more future
Many worry about the negative consequences Global Warming may have on our Earth. It is believed that there will be detremental effects from sea to land. A rise in water levels causing the icecaps to melt. Melting icecaps would then release methane another greenhouse gas. The oceans salt water would mix with freshwater and CO2 would get absorbed into the oceans causing disabling effects on our waters food chain.