Why is important to develop technology for renewable energy sources?

Answer 1

the motor car was first invented in the 1820's and was chose over the electric motor because the engine was a lot cheaper and didn't have much work to create the fuel. This started the use of it everywhere during the industrial revolution and the demand for oil rose. Gas or gasoline is made from refined oil and crude oil or petrol is made from fossils. When the dinosaurs died millions and millions of years ago some of these were compressed; some of these compressed and preserved as fossils were heated and mixed with mud and were changed to oil. This process takes a very long time and there is only a limited amount of oil in the world. When the oil is burned it releases carbon dioxide which goes into the atmosphere and causes the suns rays to be trapped in the atmosphere. This is called the Greenhouse effect, this is similar to putting a lid on a pot of boiling water. Currently the Earth has heated about 1 degree. This may not seem like much but the earth only cooled 6 degrees to trigger the ice age. Imagine what would happen with the earth heating 6 degrees. Renewable resources are important because without them the earth would continue to rise in temperature and would destroy life as we know it. The problem isn't so much as developing technology it's just since the time of the motor our world has been based on oil and it's hard to make the entire world change on a dime. Also 3rd world countries (underdeveloped countries) would prefer to feed their families than not destroy a tree (trees change carbon dioxide to oxygen essential to help). Already we are beginning to see the world change because of these effects. A drought in the amazon(2005) destroyed 2 million square kilometers and just this year(2010-11) there was a drought that destroyed 3 million square kilometers of trees. Now instead of absorbing CO2(carbon dioxide) they will be emitting it causing the earth to heat even quicker.There are many other reasons to use renewable resources but another reason we aren't making the switch is because of the cost and this is another major reason. If there was a more efficient and cheaper source of renewable source of energy most people would jump on the idea. Though there is efficient motors the process wastes 80% of the energy through heating the car and engine. Until we develop something we won't be able to do much to stop it.