... all have an effect on the Earth in various ways. The Earth's orbit brings the planet closer to the Sun at one point in its 100,000 year trip. The Earth's tilt also changes just a few degrees over a period of 40,000 years or so, but enough to change the position ... of the polar ice caps relative to the Sun. Finally, the procession of the equinoxes also moves the poles closer to or further away from the Sun over a period of approximately 23,000 years. Each of these cycles by itself may not have a ... states that temperatures are, indeed, rising with the global mean surface air temperature...

• Word Count: 1437
• Approx Pages: 6
• Has Bibliography
• Grade Level: Undergraduate

... running automobiles, manufacturing plants, trains, or coal-fired power plants, create greenhouse gasses that are encompassed by carbon dioxide and water. Also, burning some hydrocarbons produces methane and nitrous oxide. The resulting emission of greenhouse gasses traps energy from the sun inside the Earth's atmosphere producing the temperature to increase dramatically. IPCC abridged the detrimental effects of global warming caused by the ... and CO2 emissions? Policy Recommendation Brislow, Hamel, Lackow, & Nystrom (2014) modeled three price trajectories for the carbon tax in Massachu...

• Word Count: 2085
• Approx Pages: 8
• Has Bibliography
• Grade Level: Undergraduate