... Maglev). While Europe and Asia have already taken full benefit of high speed trains, America has sat back and weighed the options. California is the hotspot for the idea, yet there are many who find issues with it. Despite its shortcomings, a high speed rail would ultimately ... the California high speed rail authority, there would be a quite a brigade of high speed trains. There would be train stations in San Diego, Anaheim, Los Angeles, Riverside, Fresno, San Francisco, Sacramento, Bakersfield, and some other smaller towns. A trip from San Diego to San Francisco is estimated to cost se...

• Word Count: 1137
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

... chemicals frequently used on Earth today. Chemicals from aeresol sprays, air-conditioners, refridgerators, and cars etc. mainly because of their use of the chemical freeon and other chemicals toxic to ozone. There is another way however in which ozone is infact harmful. This occurs when ozone is ... smog, can cause life-shortening effects on the respiratory system. These effects of ozone contained in smog vary in the amount of damage they produce. Some cases actually just result in a cough or pain in the chest area only for terms of minutes to hours, others however can even be life threa...

• Word Count: 805
• Approx Pages: 3
• Grade Level: High School

... - increase. predicted to be 450 PPM by year 2050. Human contribution to CO2 production is due to burning of fossil fuels. part of the carbon cycle occurs naturally and is naturally variable. however it is not the only or the most powerful greenhouse gas. Methane (CH4) levels are low compared to CO2 but 3X more effective. pre-industrial levels of methane: 650 PPB ... 1990: 1650 PPB increasing by 1% per year. Sources of Methane: natural wetlands, rice paddies. termites - through the digestion of cellulose - bacteria in gut uses methane. animals such as cattle (ruminants) and sheep and goa...

• Word Count: 517
• Approx Pages: 2
• Grade Level: High School