Glacial period

remainder of this century we will experience an increase in average temperatures of between 1.4 °C and 5.8 °C. This is largely due to increases in atmospheric CO2 concentrations, significant changes in rainfall patterns, and extreme dry and hot periods in other regions (Houghton et al. 2001). Such events will have a considerable effect on the tropical rainforest. While vegetation model simulation predict that we will lose 90% of tropical rainforest flora and fauna by the turn of the century,…

In this experiment Sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis (PAGE) was performed under reducing conditions to estimate the molecular weight of proteins within a sample. The protein sample was from the previous using anionic exchange chromatography to partially purify N-acetyl--D-hexosaminidase, Lab 3. The molecular weight was determined through the interpolation of a standard curve of proteins with a known molecular weight. The molecular weight of band 1 was determined to…

One, centered in the north Pacific and most commonly called the Pacific Decadal Oscillation seems to have periods of 15 to 25 years, and of 50 to 70 years. The other, the North Atlantic Oscillation has a dominant period of 12 years and as its name implies, it is centered in the North Atlantic.Internal ocean variability can be tracked through paleoclimatic data which provide evidence for dramatic climatic events…

Almost 4.5 billion years ago, the Earth, newly formed, had possibly the hottest climate in the planet’s extensive past. Temperatures were scorching, enough to liquefy rocks. As radioactive elements located in Earth’s core decay, they generate heat and pressure shoving molten rock toward Earth’s surface. Along with bringing molten rock to the surface, volcanoes also released heat and emitted carbon dioxide into the atmosphere, initiating the greenhouse effect which leads on to global warming.…

The previous few million years of Earth 's climate has existed controlled by the ice age phases. The ice age phases consisted of extended cold temperature periods with glaciers where massive ice sheets grew on the mainland masses on and around the poles. Because of the ocean water evaporating, the water was being sealed up onto the land as ice. This ice sheet build up has drastically lowered worldwide sea level. Throughout the shorter, hotter, breaks called interglacials, the ice sheets have…

A vital tenet of forensic science is the exchange principle first proposed by Edmund Locard, which can be generally understood as the phrase “with contact between two items, there will be an exchange.” Every time there is a contact between individuals, environs and articles, there is an exchange of physical evidence, however small it may be. This aspect plays an indispensable role in crime scene investigations as it enables the detectives to establish links between the crime scenes, victims and…

Windsor, Ontario, Point Pelee National Park is one of Canada’s smallest national parks, yet this tiny green oasis still attracts hundreds of thousands of visitors each and every year. The park sits atop a deposit of sand up to 70 meters thick left by glacial meltwaters on a submerged limestone ridge. Over the years, a thin but rich layer of soil has formed over the top and is supporting a lush, almost jungle-like deciduous forest housing several different species of trees and even some rare…

congressional has also made claims that global warming isn’t man made, supported and defended BP oil spill.Over the past five hundred million years we experience ice ages and a brief warming in interglacial period but you can see how CO2 played a role in temperature overall more than 90% of the glacial-interglacial warming occurs after the atmospheric CO2 increase.We can see on how much CO2 plays a role without human activity now with the added greenhouses we are accelerating the process of…

is truly amazing what one can find as they begin to dig in the dirt. Missouri’s geological columns are more prevalent in the Southern area of the state where we find more of the igneous rocks left from volcanic activity during the pre-crustaceous period. They create a…

flowing ice that have accumulated on land in areas where annual snowfall is more than the yearly loss of snow by melting. Glaciers are open systems. They have inputs of snow being stored in snow and ice, and leaving the system usually when it melts. Glacial systems are controlled by two basic climate conditions: precipitation in the form of snow, and freezing…