Alternative Energy Question

Please answer ONE of the following questions in the comment section.

1. Many types of alternative energy were discussed in the presentation. Which one or two do you think have the greatest potential to solve the worlds energy problems?
2. Where do you stand on the ethanol/biomass controversy? Do you think the US should pass legislation to increase ethanol production?

Nuclear Energy Question

Please answer ONE of the following questions by responding in the comment section.

1. Discuss the pros and cons of nuclear energy.
2. The primary problem with nuclear energy is the radioactive waste that is produced. How would you suggest we deal with this waste as a country?

Fossil Fuels Question

Please answer ONE of the following questions in the comment section.

1. How have the demands for energy changed in the past few decades? What countries are responsible for most energy consumption?
2. What technologies are available to allow fossil fuel use for energy without so many negative impacts on the environment?

Climate Change Questions

Please answer ONE of the following questions in the comment section.

1. How do scientists reconstruct past climates? Where do they get the data?
2. What consequences are expected by the end of this century if global warming continues at current rates?

Atmosphere Question

Please post your answer to ONE of the following questions in the comment section.

1. What atmospheric problem was addressed by the international community in recent years and solved by the Montreal protocol?
2. What changes in atmospheric CO2 concentrations have occurred in the past 50 years and how do scientists account for this excess carbon?

Populations Question

Please post your answer to ONE question in the comment section.

1. What factors have impacted the population of the earth over the last 5000 yrs?
2. What population challenges are the United States and the world facing today? What are some possible solutions?

Populations

The top 3 countries in 2008 with highest population are China, India, United States. The population over the last few thousand of years has increased rapidly. In the early 1700's is when it started to increase. The U.S. has alot of immigrants because we are so close tp the border. U.S. is the number one country with the most immigrants.