Glacial period

This is a problem specifically pinpointed in coastal areas as it increases flooding, can alter coastal ecosystems and wetland (Eggleston et al, 2013). There are of course variations due to glacial isostatic adjustment, which is when the glacial ice melted the land underneath rebounded due to the weight being lifted. This therefore means that North England and Scotland will experience less sea level rise and the South will experience more, exposing the South to enhanced…

them. This indicated that there was an error because the slides should all look very similar. Since I had some background information on staining from microbiology laboratory, I started to observe that some slides were left in ethanol for longer periods of times. Ethanol is used to dehydrate the slides and that’s why some slides were over-decolorized. Research shows that there are a variety of different protocols for Cresyl Violet staining.1 The indicated time that the slides…

found under the sediments from glaciers. There has been evidence that supports this movement of the river. In the article “The Teays River” it states, “This buried valley is up to 2 miles wide and in some areas lies beneath more than 500 feet of the glacial drift” (Ohio Department of Natural Resources, 1995, pg. 1) This explains how the water flowed through the areas. It then moved to the other state borders where the river ran through their land towards the Mississippi River. The headwaters…

Global warming is part of the Earth’s natural processes. Just as there have been periods global cooling and periods of global temperature stability. Though these processes are natural and are given to the ebb and flow of the Earth’s rotation, precision, and periodic catastrophic events humankind’s industrial, scientific, and population explosions over the last centuries have had a marked effect on the Earth and how it is understood. As it stands, there are two major trains of thought about…

pattern of stream flow (Blanc 1999, Thom et al). Before people dominated the landscape, the driving forces of nature shaped the topography and the subsequent ecosystems that evolved, leaving behind biological and geological relics from the last glacial period (Nagel, 2010). These relics are seen today in the form of outcrops, caves, and ancient species thriving in the cool crevices of this geography (Nagel, 2010). The topography…

The Permian Period The Permian Period is the last one, after the Carboniferous Period, of the Paleozoic Era lasting for about 46 to 47 million years from 299-252 million years ago (mya) (Smith 2011). One major feature of this period is the formation of the supercontinent, Pangaea which affected the environment and the climate as well which gave rise to new species. Another distinct feature is the greatest mass extinction event which killed around 54% of all marine families and most of the…

GLOBAL WARMING Is global warming a man-made catastrophe or a natural cycle? Scientists have usually agreed on the fact that the earth has elevated in temperature over the past 20,000 years from the last the last major ice event, but the true controversy comes from when they try to figure out why the warming is happening. There are two major thoughts on why this is occurring • Increasing the atmospheric concentration of the gas Carbon Dioxide (CO2). This is usually done by human’s industrial…

The soils in this site are well to excessively drained and formed in residuum from clay shale or glacial till. The surface layer is three to eight inches thick. The texture of the subsurface layers ranges from clay to loam. The soils have a slow to moderately rapid infiltration rate. These soils are typically calcareous at or near the surface; however…

Article 1: According to Karl Hanes in his “Effects on Salinity in Florida’s Estuaries”, Florida’s most important estuary, economically wise, will be impacted on greatly as a result of climate change. This climate change is causing the sea-levels to rise and a change in the river flow to occur. Due to this, an increase in salinity levels will result in the harming of the biodiversity and their habitats that are present within the estuary. As a result of high salinity levels many of the estuaries…

that the ice sheets retreated as the northern hemisphere emerged from the last ice-age.” The general public is affected by this because some of the people who live near mountains solely rely on glacial melt for their water source. As the glacier melts, it has been used to water fields of crops during dry periods as well. Eggleton (2013) indicates how global warming is not something that could be resolved in this life span, but the people might live long enough to see the consequences. He stated…