By: Dr Pandula Siribaddana
According to the United Nations, the declining water quality has become a global issue, which affects human health in a significant manner. Among the factors which contribute to a decline in the water quality include the population growth, expansion of industrial and agricultural activities as...
By: Jennifer Bridges
Considering how well-established the Merriam’s wild turkey is in modern Montana, most people wouldn’t think of this bird as an exotic species. However, before the mid-1950s, there were no wild turkeys to be found in the state. In her guide to the Merriam&rsquo...
Why CO2 can't be the cause of global climate change
By: Rex Trulove
Not many people dispute the belief that the global climate is changing, though there is some disagreement about whether there is a warming trend, cooling trend or if the climate is simply shifting. Along with this belief, many theories have been put forth to explain...
By: Elizabeth M Young
People know that volcanoes have produced incredible amounts of matter that has been ejected into the atmosphere because our current atmosphere came from volcanic eruptions in the first place. However, volcanoes are not known for producing more greenhouse gases than humans. Humans win the greenhouse...
By: Julie Thomas-Zucker
Meteorologists are so often wrong in their weather predictions because the wind blows where it wills. No one knows where comes from or where it goes. Wind drives many storms and makes them go in a direction that computer models don't see. Weather prediction has...
By: Trenna Sue Hiler
In the United States the national standards of water quality are determined by the Environmental Protection Agency (EPA). Total water quality is determined by examining and assessing three classes of attributes. These are chemical, biological and physical.ChemicalChemical attributes of water can affect aesthetic qualities...
By: Ray Langley
Active volcanoes in Antarctica The continent of Antarctica is perched in the center of the Southern Sea, yet despite the subzero temperatures the land and its surrounding area is dotted with more then thirty-five volcanos. Antarctica is the southernmost land mass, and the fifth largest...
How people know that global climate has been changing for millions of years
By: Christyl Rivers
Climate change happens slowly over time. The evidence is in the sedimentary rock, in the dried sea beds, in the fossils found in places of very different climate today. Climate change affects all of life, although its impact is measured in geological time. Therefore, although...
How people know that global climate has been changing for millions of years
By: Rex Trulove
For several decades, global climate change has been a phrase the news media and others appear to love using. The idea isn't too hard to grasp, and yet it can cause confusion. People might wonder how anyone can know the extent of the change, especially...
By: Jose Juan Gutierrez
The earth's climate has changed throughout earth's history. There have been periods, such as the glacial periods (ice ages) where earth has been covered by ice or interglacial periods where ice has retreated entirely to the poles or has melted completely. Samples left by ancient...

 

1 455 456 457 458 459 533