Weather and Energy Levels

It’s amazing how much weather can affect energy levels. When the weather is clear and sunny, people’s spirits are lifted and light, this can often cause the feeling of excitement and thrill. Cloudy and dark weather can bring on feelings of boredom, melancholy and a general feeling of the heebie-jeebies. I wonder if it is the sudden changes in air pressure that causes moods to alternate. Or perhaps a color association with mood levels. Certain colors are supposed to influence different types of emotions. Like warm colors being homey and relaxing, or yellow being a supporting color for cheer and joy. It may be the gray or dark colors caused by gloomy weather that cause drops in energy levels.

Classmate response

link: https://classes.uaa.alaska.edu/webapps/portal/frameset.jsp?tab_id=_2_1&url=%2fwebapps%2fblackboard%2fexecute%2flauncher%3ftype%3dCourse%26id%3d_63453_1%26url%3d

I like Carolyn’s post about aluminum cans. I agree that aluminum is a metal that can be used over and over again. Aluminum is cheap to recycle and is very useful even after it is melted and reformed. It amazes me that with all the emphasis being put on recycling today that there is not more of aluminum and tin recycling. At UAA, there are several containers dedicated to recycling white paper, but none for aluminum or plastic. It seems like there could be, especially at the ConocoPhillips building where all the new age hippy science majors hang out.

Think Global Eat Local

Eating locally grown food is beneficial for your community and your environment. Buying locally harvested fruits, vegetables, grains, and fish from your local farmers and fishmongers is profitable for your local economy. Buying locally keeps money within your community. Buying local is good for your environment, because it cuts down on the need to package, refrigerate, and transport products. All of which take a substantial amount of energy.

Renewable v.s. Clean Energy

Renewable energy doesn’t necessarily mean clean energy. Renewable energy can easily be confused as being good for the environment because it is renewable. Take the gas produced in landfills for example. The methane gas produced in landfills is renewable. However, two of the major components in landfill gas are carbon dioxide and methane, both of which are greenhouse gases. Another misunderstanding about landfill gas is that it is the same as natural gas. Natural gas is 80-99% methane and landfill gas is about 40-60% methane and 40-60% carbon dioxide.

Anchorages Landfill

Halpin, . (2010, April 1). Methane at landfill may produce electricity for 2,500 homes . Anchorage Daily New,

The Anchorage landfill is considering building a 7.5 million-dollar power plant that produces electricity from the landfills methane. The methane gas is a byproduct from the decomposing waste in the landfill. At the moment the landfill is required, under the federal Clean Air Act, to collect the methane and burn it in a flare. The collection system captures about 1,350 cubic feet of gas per minute, and it is predicted that this rate of production will continue for 60 more years. The city of Anchorage is looking for an interested partner company, which would help build and maintain the plant. If the proposal does go through, the electricity from the plant would be able to power 2,500 homes.

Hot Rocks

Branan. (2009, June). Hot rocks stay hot. Earth, 54(6), 24-25.

The Himalayan mountain belt was produced when two continental plates collided. Continental crust is mostly composed of granite, which is formed under a high degree of melting. For a long time it wasn’t known why the granite in the Himalayas could have produced enough heat to melt the crust. Alan Whittington, a geologist at the University of Missouri at Columbia and his colleagues has found a possible answer. They experimented with three types of continental crust to see how fast heat would move though them. The results were that cooler rocks loose heat faster. Hotter rocks hold heat inside longer because they are less efficient to cooling down. This means that the heat needed to melt continental crust does not have to be constant.

Jupiter

Gramling, . (2009, June). Jupiter breaks out in spots. Earth, 54(6), 21.

Jupiter’s famous 300-year-old Great Red Spot is shrinking and new storms are appearing. Astronomers have been taking measurements of Jupiter’s storm wind velocity. A fluid dynamicist Xylar Asay-Davis of the University of California has determined that Jupiter’s Red Spot has shrunk about fifteen percent since 1996. Don’t worry about Jupiter’s landmark hurricane disappearing forever though, because in 2000 a new smaller storm has appeared southeast of the old Red Spot. The creation of the new storm, nick named “Red Spot Junior”, is due to the marriage of three oval-shaped storms between 1998 and 2000. The Red Spot Junior has since then turn red and is half the size of the original Great Red Spot. To add to the excitement a third storm has joined Jupiter’s atmosphere in 2008. The changes of the atmosphere is thought due be in response to a possible climate change on Jupiter.