Read this article to the end of paragraph 7 ending with the words "about 125,000" years ago then answer these questions.
1.How come the Dead sea has been shrinking so rapidly? Is it all due to human usage?
2.Why are researchers so interested in continuing to drill and finding out more about this area?
1. The dead sea has been been shrinking so rapidly due to the warming of earth, it has gone thru many changes like this in the past as the drilling suggests. Also, for the first time ever humans are using resources from the dead sea, however humans are not a large factor in the drought.
ReplyDelete2. Researchers are interested in this area because they believe that they could find valuable information regarding climate changes similar to the global warming that is currently happening.
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Delete1. The Dead Sea has been shrinking rapidly over the past few decades because humans are gradually using more and more water out of the Jordan River which feeds into the salty body of water. There has been evidence found that during hot periods on the Earth, the Dead Sea dried out. Currently, scientists believe that with the human reliability on the Dead Sea and the climate change, the Dead Sea would dry out faster than in previous times showing once again how our civilization is dramatically changing the environment.
ReplyDelete2. Researchers are interested in continuing to drill in the Dead Sea area to find out important information about Earth's past. They believe that if they are able to reach a depth of approximately 1500 feet, they will be able to date back as far as a million years ago. By doing this they can find evidence of water chemistry, prevailing winds, and changing climates in Earth's past as well as when humans migrated from Africa to Asia.
1) The Dead Sea has shrunk in the past several times without human interaction. Recently, the shrinking of the sea is mainly by human fault considering Syria, Israel, Jordan and the Palestinian Authority all take out water from it for agricultural uses.
ReplyDelete2) The drilling not only can help determine how the Earth has reacted in the past to climate change and give potential clues about how we can fix the current situation, it also shows a more sentimental history of immigration routes in the world. The core sediments from 1500 feet or more can reveal much about the past and help scientists with the future of our climate
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Delete1. Research reveals that the water levels of the Dead Sea have fluctuated with the coming and going of ice ages over the last several hundred thousand years (rising during glaciations to the north, when the region’s climate was much wetter than today, and receding as glaciers pulled back.) The reason the Dead Sea is shrinking rapidly is not only due the glaciation, but present day human interactions, such as Syria, Israel, Jordan and the Palestinian Authority all pull water from the Jordan for agriculture and other uses.
ReplyDelete2. According to the law of superposition, lower layers are older than those higher up in the sequence, assuming layers are relatively undisturbed, this law is used as a relative dating technique. Researchers are so interested in drilling more because if they are able to achieving in drilling 1500 feet or more, they can recover sediment laid down over the last one million years. From the deposits, researchers can find evidence of water chemistry, prevailing winds, changing climate, and may reveal evidence of human migration routes and previous conditions the water level allowed (such as beaches).
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Delete1. The Dead Sea has been shrinking over hundreds of thousands of years due to increasing temperature. Today, the Dead Sea is shrinking at a faster rate than previously due to human dependence on the water for agricultural and other uses.
ReplyDelete2. Researchers are interested in continuous drilling to uncover deeper sediment which could help us learn more about the Earth's history, millions of years ago. Another benefit in drilling is that we can learn how the Earth reacted to climate change in the past and how we can implement those ideas today.
1. It seems like the water is evaporating at rapid rates. The sea is isolated from any other source of water, including rain because the water is going into the atmosphere more than it is returning to the sea. Also, the warmer the climate, the more evaporation takes place.
ReplyDelete2. This location has well-preserved sedimentary rock that can reveal layers of history. It can help researchers study patterns in climate, natural disasters, and information from years of interest (the article mentions that it may reveal information about Biblical times.) Some historians can learn through these findings and other environmentalists may benefit from learning how the earth has changed and apply some newfound ideas to today's changing climate.
1. Part of the reason it is shrinking so fast is the human dependence on the lake for agriculture and salt, but also, evidence shows that this is not the first time that the lake has dried up.
ReplyDelete2. Researchers are interested in drilling in this area because the sediment tells them a lot about the past, and the Uranium deposits can help them precisely date evidence. Also, this study can share a lot of information about the climate's effect on things like water supply.
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Delete1) Research so far would indicate that the drying of the Dead Sea is part of a cycle that has existed for hundreds of thousands of years, and it is likely that an event such as this does not owe all of the credit to human causes. However, the process of drying is certainly aided by the fact that the climate of the Earth is getting warmer and warmer; an effect which is likely linked to huma activity. So in a way, humans are contributing to the loss of the Dead Sea, but not directly.
ReplyDelete2) There are multiple reasons for there to be such an interest in the drilling of this area. The drilling allows scientists to study conditions of the area from ancient times. The motivation behind investigating the history of the Dead Sea ranges from the value of understanding the cycles the Sea has gone through, to possibly making significant anthropological finds, as this was an important area involved in the migration of early humans.
Good stuff
Delete1. The Dead Sea has been shrinking so rapidly because of a steady state equilibrium. The sea rises and falls in a cycle but I think now that there is more of a human presence involved with the sea, they could be contributing to the sinking also. Last time the sea shrunk there was not as much agriculture and mining pressures as there is today.
ReplyDelete2. Scientist are so interested in this area because they can see past climate changes,like when there were droughts and dry seasons. They can also figure out if human pressure on the sea are causing the drainage or is just in the drying out part of the cycle. This drilling will shed insight on our past and maybe our future.
1.Due to steady equilibrium, the Dead Sea has been becoming smaller. It is unlikely that all of the changes are credited to humans. The changes in the ecosystem such as climate changes, as the Earth becomes warmer should be applied to theories, and it is not directly because of humans.
ReplyDelete2.Scientist have many reasons to be interested in the Dead Sea. They can determine if there is an effect on humans and there effects on the system and also past history allows for them to exam climate changes
1. In Earth's history, the water level of the Dead Sea has been known to rise and fall randomly. It is entirely possible that this rapid decline of water level in the Dead Sea is just another part of it's rising and falling pattern. This is entirely possible, however not very probable. Human acivity only contributes to the shrinking of the Dead Sea- Our constant use of anything that emits CO2 into the atmosphere increases the Earth's temperature which increases the rate at which the Dead Sea is shrinking. So human activity does indirectly have an affect on the Dead Sea, however we are not the main cause as to why the water level is decreasing at such a rate.
ReplyDelete2. Researching the Dead Sea will allow scientist to study the affects of climate change. Also, it can reveal a lot about the Dead Sea's past and the changes it has experienced and possibly can make some conclusions about the Dead Sea's future.
1- The dead sea has been shrinking so rapidly due to increasing temperature. It is today still shrinking, due to human usage of natural water sources for growing crops (agriculture), as well as personal use. It is shrinking much faster than prevented and calculated, all because of an overuse of this water source.
ReplyDelete2- Researchers are so interested in continuing to drill and find out more about this area to understand how the Earth has been reacting to the sudden climate changes in the last centuries, as well as discover deeper soil that could help their studies and the world learn more about the Earth's history.