Resources Due To The When Energy Resources example essay topic

The potential energy savings from recycling solid waste are enormous. Much less energy is needed to make recycled materials into new products compared to beginning the process again with new, "virgin" raw materials. For an example, substituting scrap aluminum for virgin materials reduces energy consumption by 90% (Brougton et al., 1991). As compared with virgin materials, using scrap steel saves 50 percent of the energy consumed: recycling paper results in a 60 percent savings; and glass can net a 30 percent reduction (Brougton et al., 1991). The energy generated from burning these materials is but a small fraction of the energy savings realized through recycling. Now it is possible to see how just a choice of vehicle can affect environment.

The same situation is in every choice a human being makes (ex: buying products with reduced packaging, using public transportation, etc). My opinion about the preservation of natural resources and their availability in the next 50 years is that there still will be some natural resources, however, in a very limited amount. This is mainly due to the psychology of human being. We tend to use whatever is available, but when we see that it is almost the end we stop. Today it is not the end yet, because we think that we still have 50 years ahead, however we forget about next generations. I also think that due to technological progress, there will be new sources of energy discovered or at least there will be developed the way of very efficient use of gifts of nature.

Even today there are some technologies leading towards quitting to economical profit they have (using alternative energy resources costs more today). use oil, gas, and coal, but people continue to use these resources due to the When energy resources will be almost depleted, then their price will be higher and people will start to use other sources of energy. It is good that people start thinking about the future. I think that everything will be all right with the world in the next century, because from a religious point of view God will never allow the earth to be totally polluted and unable to support the lives of humans. Humans actually need to revise their attitude towards nature and the situation will be changed for better.

Evolution theory is still widely accepted and is still the foundation for the change in genetic characteristics in living things. It has gone through many changes since conceived by Charles Darwin in the 1830's. The importance of this is that scientists are aware that the theory needs to be revised as new evidence is found. For instance, as the fossil record grows, scientists must be able to determine if the newfound fossils are transitional. As new areas are surveyed and new species are found, scientists must fill in the gaps to determine if these species are linked to other known species. In many cases, scientists will not be able to fill in the gaps.

This is not necessarily evidence that evolution theory is wrong. Limits in technology and incomplete understanding of known species will hinder this process. In some cases, evolution theory must be amended to include new findings or ideas. In essence, evolution theory must evolve to be more complete, which shows that today evolution theory is already a fact, but still at the same time remains the theory, because some thing are uncertain and there is a lot of other things and their influence to be explored.

Bibliography

Brougton, C.A., Doherty, C., Morris, D. and Platt, B. Beyond 40 Percent: Record-Setting and Composting Programs. Washington, D. C: Island Press, 1991 Webb, C.
Economic Barriers to Recycling. Edmonton Environment Council of Alberta, 1985 (1) Vehicles: feel the contrast.