Climate Change The world's ecological issues have been studied intensely by scientists in various academic disciplines vigorously for many years and have been greatly accelerated in recent decades. The level of understanding about how natural systems on the planet operate has become immensely sophisticated. Although there are still some issues that remain puzzling, on the whole, scientists have a fairly good understanding of the planets natural systems function. In recent years

2009). At the same time, a careful scientific study that attempted to account for the natural temperature cycle of the Earth, which is mainly driven by oceanic currents, found that even with natural variability accounted for the trend in the twentieth century has been an unrelenting warming trend (Swanson et al. 2009). Discussion These results lead to varying conclusions regarding the causes of global warming and the effects it will have

Geomorphologic evidence of glacier fluctuations in Iceland during the Late Holocene is abundant. Furthermore, Iceland has a unique documentary record of ice-front positions between the times of settlement, around AD 870, to the early 20th century. Many of Iceland's larger outlet glaciers have been systematically monitored since 1930. Consequently, a general description of glacier conditions exists for the past/1000 years, in addition to a detailed knowledge of ice-front fluctuations

The issue of global warning has recently become a very polarizing and contentious issues within the overall discourse of society. For one, this issue has become highly politicized creating a much more antagonistic view of global warming and its impact on the lives of civilization. Within the United States, some political parties outright deny the existence of global warning, often calling it a �Chinese Hoax.� Those on the opposite end

Part 1: A Closer Look at the Evidence 1. The first graph on the NASA site shows the concentration of CO2 in the atmosphere, comparing across time. It shows that for all time, there were fluctuations in the level of CO2 in the atmosphere, but that the level always remained below 300 parts per million. The graph takes a sharp uptick in recent years, and by the time we get to

Climate Change on Marine Mammals Sustained scientific observations reveal and alert everyone that climate change has asserted alarming effects on the oceans (Simmonds & Isaac 2007). Scientists agree that these effects are likely to be in the form of alterations in prey distribution and volume. They also agree that the more mobile species of marine mammals may possess enough resilience to adapt to the changes. But the extent of their