Pick a website below and read a little about paleoclimatology, if the material from the website is way over your head, use Wikipedia or Youtube for some information to respond to this prompt. Once complete with your research write 5-7 sentences about your research and identify the information you find most interesting.
Coral Evidence of Climate
Glacial Ice Core Samples
Sea Sediments (mud)
Tree Rings
Photo Evidence
Fossils and much more
.....haven't found anything yet? Click here then.
7 comments:
In the photo evidence page, it is very clear that there is a major difference in areas. A picture was taken in 1859 and contained snowy mountains with a road. However the road has one house along the side of it and seems to be a deserted area. Although looking at a picture taken in 2001 at the same location, there has been a major upgrade. There is many buildings and paved roads with cars as if it were a regular town. A town had developed significantly in just 142 years. What allowed this to happen was the fact that snow had melted and green grass was growing making it suitable for people to live.
-lindsey
Sea Sediments
I read about using sea sediments for paleoclimatology. It was surprising to me that just by taking samples and looking at some parts of the sea, the temperature for over 100 million years could be conceived. Over one year, billions of tons of sediments fall and rest at the bottom of the ocean. These sediments are able to determine the climate conditions of the area they are located. Threw these techniques, it has been confirmed that a global cooling has taken place since the extinction of dinosaurs. This paleoclimatology interests me because it is amazing to see that just from tiny samples such as sea sediments, millions of years can be calculated.
Tree Rings: Gave a lot of information about tree rings. I really liked how they put a lot of definitions in the web page it helped me understand... A lot more about tree rings...
Dendrochronology: is the dating and study of annual rings in trees. A scientist who uses tree rings to answer questions about the natural world and the place of humans in its functioning
The word comes from these roots.
Ology: the study of
Chronos: time;more specifically, events and processes in the past
Dendros: using trees; more specifically, the growth rings of trees
Crossdating: matching ring-growth characteristics across many samples from a homogeneous area.
Skeleton Plotting:
The process of marking a tree;s ring width variation on graph paper strips
I think that this is very useful if you were to go out and look at tree-rings
The sites showed me that the proof of global warming is quite evident. The carbon in the air has gone up 30%, the surface temp of water has increased, the frequency in hurricanes has dramatically increased, and about all else, the polar ice caps have nearly disappeared. This can be changed if people only had the will and made the effort, things could change. Looking at all the photos of the evidence hits you alot harder than text, and graphs do, when you can see a massive glacier disappear in just half a century...
I read the article on coral paleoclimatology, which is when scientists take a coral core sample, and use the data collected to determine whether the recent climate changes are following a recurring cycle or not. Not only does the coral show climate change over time, but it is also affected by climate change. About 10% of the worlds coral has been seriously damaged, and another 60% is seriously threatened. The main cause of the coral damage has the environmental impact that humans have had; industrial and agricultural pollution, sewage waste, and over exploitation of fisheries, especially those with damaging practices. Since most of the coral in the world is already at the upper reaches of its temperature limit, global warming has also led to tons of coral bleaching i.e the killing of coral reefs.
I had interesting about tree-ring the tree ring tell us to put the present in proper historical context, to better understand current environmental processes and conditions and to improve understanding of possible future environmental issues.
and also If you want to conifer tree ring you can check the color. if it appears light in color it is early wood. and the cells have thin walls and large diameter it is also early wood. i thought if you see the tree ring, i knew we can realize how was the environmental in the past using a tree ring but i didn't know that we can predict our future environmental too it was pretty interesting.
so if you want to know about how this environmental was in the past check the tree rings!
I did research on Ice Cores. I watched a lot of Youtube videos on the process of the drilling and shipping. First scientist need a special drill that will drill a cylindrical tube of ice out of the glacier. This "cylindrical tube" is the ice core. Ice cores show the layers of day/night cause when the snow fell in the morning it was cold enough to stay but when the sun came out it melted and formed a more noticeable layer compared to the night or morning. Also little bubbles will be trapped within these layers and can tell the temperature and how much CO2 was in the air and snow/weather. After they drill a core they send it to a lab where other scientist examine and log the data for what ever they might be looking for. A tricky thing is that the ice cores need to be shipped properly so they don't break or melt and ruin the point of the core.
Jonathan Smith
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