Ice Cores in Climate Change
I chose the idea of ice cores for my enduring learning piece in our Climate Change Unit. Ice cores can tell us so much about the weather year after year. By looking at ice cores we can see warm arctic summers, or frigid ones, along with extremely freezing winters or moderate ones. By observing ice core samples scientists can determine what happened centuries ago. Things like temperature, atmospheric circulation strength, precipitation, ocean volume, atmospheric dust, volcanic eruptions, solar variability, marine biological productivity, sea ice and desert extent, and forest fires can all be observed through ice cores as well as the approximate time it happened. When these things are observed they are charted and as scientists gain a timeline of weather and other issues through the ice cores they can determine what is causing the globe to warm today. Maybe there are even patterns of weather or natural disasters found in the information from the ice cores. Ice cores provide so much information integral for understanding climate change. On Ellesmere Island in Canada, ice cores have been collected and have found that temperatures after the last ice age were warmer than what temperatures are now, scientists say that this could predict what we are getting ourselves into with the arctic warming.
I found these two websites on ice cores in climate change. The first website provides a variety of diagrams, pictures and charts. It explains everything about ice cores from how they are extracted to how scientists reconstruct weather patterns from them. This site contains videos, not only on ice cores but on other factors in climate change. The second website is good for answering some questions you may have previously had about ice cores. Diagrams are provided containing detailed information on melting rates, accumulation and past greenhouse gases. Both of these sites are good for explaining ice cores and how they are connected to climate change in general.
I chose this CBC article on a study done in Edmonton on the ability to predict how ice will melt by the ice cores collected. This article goes through details of the real-life situation of the melting ice sheets in Greenland. It talks about the predictions the researchers have since discovering information from the ice cores. This article goes into detail about the clues they have found about climate change through these ice cores. The information displayed through this article really proves how ice ores can help gain information on climate change.