can anyone tell me why specifically why? I am stuck on answer this. I am still thinking but not having a good way to answer it. please help and for the best answer. ;p

Why is the sun the source of all our fossil fuels and NEARLY all of our renewable energy?

Which of the following is NOT considered an alternative source of energy?
A. wind and water energy
B. geothermal energy
C. solar energy
D. natural gas

Geothermal energy is not used worldwide because it is
A. inefficient.
B. geographically limited.
C. nonrenewable.
D. very costly

Fossil fuels include
A. hydrogen, oxygen, and acetylene.
B. wood and charcoal.
C. dinosaur bones.
D. coal, natural gas, and oil.

I keep seeing articles saying we have to go to renewable energy sourses and soon. What options do we have. Hydro power is being used and has nearly reachedits limit. Wind power so far has not proven it's worth. It takes a huge number of wind turbines to even begin to make a dent in consumption of fossil fuels. The same with solar power. It would take a vast amount of solar cell panels just to power one factory. Bio fuels such as Bio diesel and alcohal use up a vast amount of crop land that will soon be needed to feed the growing population. Hydrogen has potential but so far it takes more energy to produce it than the energy it provides. Fusion nucular may be the best answer in the long run if it ever becomes possible to build fusion reactors that donot take outside energy to run them. Fision reactors create a vast amount of dangerous wste that will last far too long. Any one know of any alternative that can bee viable?
Thanks to you all for answering so far. There are ideas there that I have not explored very well so I will get at reading and see how they fit in. I know many things have to be done and I do hope it happens soon. Neucular for the time baing seems the only way out until something better comes along later. Thanks

Im looking for direct sources from a climatologist or economist etc. about fossil fuels hurting planet or switching to alternative energy for a paper. I do not want a quote by someone in an article quoting a proffesional.

He mentioned ethanol, the production of which has been proven to be disastrous to the environment as well as damaging to food supplies.

He harped on electric cars which, again, create more pollution through the increased demand on power generation.

Wind & solar are useless outside of Jr High science projects.

So what mythological clean energy does he intend to throw away our money on?
How silly of me. Evidently everyone can have free power from wind or sun, we all just choose to pay ridiculous rates to burn fossil fuels.

Ethanol is a RENEWABLE fuel, but it is not a CLEAN energy source. This has been known for years. Do you people read anything other than fringe websites and propaganda?

http://www.livescience.com/environment/080318-biofuel-dead-zone.html

http://www.associatedcontent.com/article/386784/ethanol_production_can_be_harmful_to.html

As for Iowa... Not a single commercial wind farm operates without subsidies to stay afloat. They are economically unviable. In other words, the entire country is paying so Iowa can pretend wind energy is practical. It would be impossible to duplicate this nation wide.

can renewable energy sources be a viable replacement to fossil fuels?

please include liks or websites where i can get this information of why or why not...thanx

We have been aware of the benefits offered by renewable energy sources for some time now. Using evidence from the lesson, give at least two reasons why renewable energy sources have yet to completely replace the use of fossil fuels.

Now days biofuels are revealved to be of no difference than regular fossil fuels, and even worse especially with the food crisis all over the world.
What were the initial assumptions that people have about biofuels, and did they have "science" to back them up?
Could you please give me links to sites
(this is for a project and im short on references)

Or should the US economy continue to rely on oil and fossil fuels? Is this good for the long run? Would you support gov't subsidies to reduce costs of alternative energy technology?

I dont need specific consequences of renewable energy sources like Wind Energy can only function when Wind is present. A broad and more general answer is what i am looking for. I can think of one very obvious one which is that it is not as efficient as fossil fuels. But i need more, thx

I have a thesis that I wrote which is: Renewable resources, especially solar, are costly and not as reliable, but, they serve as a better means of cleaner air and less dependency on fossil fuels such as foreign oil.

Could a better thesis be formulated about this topic? I need your ideas, thoughts, opinions.

thank you.

they have to be able to replace energy that is dependent on fossil fuels altogether.

I am writing a research paper and I need a good hooking sentence, preferably a quote. My topic is the argument against using alternative energy sources to fossil fuels since they are just too expensive and unreliable. Are there any notable quotes that would help help me argue my point? Thanks

Considering its location, climate, ecosystems etc Whats the best to use other than fossil fuels? And why? Like, i know of lucas heights.. but why do they use that?

What are 3 possible alternative energy sources? that are being developed to lesson our dependency on fossil fuels such as oil???? Help

Are we going to be able to replace them in the coming years, or is it going to be like the doomsayers say? Where after we use all the fossil fuels we will live in a post-industrial stone age. I sure hope not!

If you there was a human sized robot in a space craft, what power supply would it run on? (Besides batteries/fossil fuels) As well, what power supply do nanobots run on?

I just read an article on how nuclear power can be used to produce biofuel instead of using fossil fuels to produce it, thus lowering co2 emissions. I'm looking for an article like explaining how a different renewable energy source could also cut down emissions associated with hybrids. Anyone know of any? Please and thanks!

Shouldn't they realize that everyone know that cars run on gas and that the concept is to make a car run on something other than fossil fuels? Are they that stupid? Do they believe that America can't develop alternative fuels? If so, doesn't that make them unAmerican?

It's a joke! First, there's the debate on whether or not there is actually MORE energy used to process the corn to get the ethanol than the ethanol is worth. At best, right now there is a 1:1.2 ration of energy in to energy out. That's not even close for something to run a nation on, especially a culture that uses the most energy per capita in the world.

Second, there isn't enough farm land in the world to plant enough corn to supply enough energy to the people of america. We're talking automobiles, homes, factories, businesses...we'd probably need 5 planets of corn with continuous cultivation.

Third, there is the whole nitrogen problem. Corn is a very inefficient plant at taking in nitrogen. Nitrogen has to be manufactured and poured all over the fields so that the corn grows fast and large enough. This requires even more energy, more pollution, and a big mess if corn plantations continue to spread with this new demand.
And please, don't even bring up palm oil...if you think that global warming is impacted by man, then using palm oil as an alternative energy may be the thing that kills us all.
And don't forget about all of the energy required to grow and cultivate corn...you don't just plant corn seeds and watch it grow...corn is one of the more difficult plants to grow. It requires huge fields to be plowed, machines to plant it, machines to cultivate it...all of those machines run on fossil fuels, and if you want them to run on ethanol, you're going to be getting even less out of the yield if you factor all of that in.

Or, we can do it all by hand and see a fraction of the yield.
Kerry, shut the fuck up. Ethanol is a type of alcohol, that comes from CORN. That is what I'm talking about. Ethanol. Not alcohol. I never mentioned alcohol in my post. And ethanol is the alternative energy source that is being presented and marketed by two of the top leaders in the United States. And shut the fuck up about other forms of energy...I am asking why anyone thinks ETHANOL is a solution, because it's such a hot topic.

And yes, I know why it is being marketed. Corporations like Monsanto and Archer Daniels Midland are making a fortune off of this. Monsanto owns patents on the corn genome that is grown in this country, producing corn that only produces sterile seed, forcing farmers to rebuy fertile seeds from them annually. And this is why farmers in Mexico can no longer afford to grow their own corn.

Seeing as fossil fuels are trashing our atmosphere... is it incumbent of Christians to adopt green energy such as wind, solar, geothermal, aquakinetics (underwater "wind mills"). "Green" would exclude nuclear.
The question is not meant to be exclusive in the sense that only Christians should use green technologies. But I want to know if Christians feel a specific Call to be green. (Call=perceived will of God).

What is the cost of the different types of renewable energy?

How does the price compare to that of fossil fuels?

A lot of the "energy" for electric cars comes from fossil fuels. So, I don't think you're making much of a difference with electric cars (you're simply trading one fossil fuel for another). So if an electric car got engery from an electric "gas station" that was fueled by wind power (or another renewable source), would it be more eco-friendly?

Should the citizens of the united states demand the government provide energy by any means until the technology and the hardware for alternative energy are ready?

I am not saying alternative sources of energy will not happen, of course they will, but we need energy now.

Get the electricity any way we can and phase out fossil fuels as alternative energy comes available.