1 % other causes Atmosphere the climate and geography. global warming. greenhouse effect. Hydralogical The water cycle much drier climate. landslide, erosion and flooding ensue. reforestation In many parts of the world Especially Asia 1 million hectars in 5 years The arbor day foundation Economics Shortterm economic gains. Loss in longterm. Illigal woodcutting. History Easter island 11001500 AD Wester Europe Massive use of charcoal. Steam engine and steamboats. References http://environment.nationalgeographic.com/environment/globalwarming/defores http://en.wikipedia.org/wiki/Deforestation http://wwf.panda.org/about_our_earth/about_forests/deforestation/ Thank you for listening !
Uranium ore, a solid, is mined and converted to a fuel. Uranium is not a fossil fuel. These energy sources are considered nonrenewable because they can not be replenished (made again) in a short period of time. Renewable energy sources can be replenished naturally in a short period of time. Picture 4.1. Non-renewable energy SIGNFICANT EVENTS IN THE HISTORY OF ENERGY BY FUEL Pre-1885 Wood was the primary source for cooking, warmth, light, trains and steamboats. Cutting wood was time consuming, hard work. 1700's After eons of superstitious imaginations about electricity, Ben Franklin figured out that static electricity and lightening were the same. His correct understanding of the nature of electricity paved the way for the future. 1830-1839 Michael Faraday built an induction dynamo based on principles of electromagnetism, induction, generation and transmission. 16 1860's
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