*English edition*
Are there any of us who don't know global warming ?
Quoted from Wikipedia, global warming is a process increasing average temperature of atmosphere, sea, and earth land. This global warming is a biggest threat for life on earth. This disater cause earth is getting hotter, crop failure, loss of coral reef, extinction various species, and many others. The point is this disaster is very dangerous. So, is there a solution ?
Every problem actually has solution, and the solution is renewable energy. The renewable energy is energy which comes from "sustainable natural processes". This energy surely eco friendly. Then, what that included renewable energy ?.
Here I explain some and the effort to implement it,
1. Solar
Solar is a conversion of energy from sunlight into electricity. How it works is quite simple, after solar thermal captured by photovoltaic cell, that solar thermal will be used to heating liquid which then become steam, that steam will be heating by a generator which in the end resulted electricity.
2. Wind Power
Wind power is useful energy gathering from wind. Wind power used in large scale wind farm to productions national electricity and also in small individual. Wind power is a lot, unlimited, wide-spread, clean, and reduce the green house effect. How it work is, wind energy that spins the pinwheel forwarded to spins the propeller on generator at the back of windmill, till produce electricity.
3. Hydro Power
Hydro power is energy which is obtained by flowing water. Hydro power that utilizies the movement of water usually obtained from dammed river. On the bottom of dam, there is a drain hole. On the drain hole, there is turbine that works change kinetic energy from movement of water into mechanic energy which can drive electric generator. Electric energy which comes from kinetic energy of water, it's called "Hydro electric". Hydro electric donate 19% world electricity demand.
4. Biomass
Biomass is a terms used to mention all organic compounds which comes from cultivated plants, algae, and organic waste. Biomass is renewable energy source with low quality. Biomass can used as fuel directly or through the briquetting process. Biomass also used as fuel for electricity.
5. Geothermal Energy
Geothermal energy is the heat energy was found and formed in the earth crust, how it work is, pumping water into the earth. Then heat from earth will creating steam. That steam will used to drive turbine for various needs, one of them is electricity producer. The British Geological Survey describes geothermal energy as "a carbon-free, renewable, sustainable form of energy that provides a continuous and uninterrupted supply of heat that can be used to construct homes and office buildings and to generate electricity".
Geothermal energy is the heat energy was found and formed in the earth crust, how it work is, pumping water into the earth. Then heat from earth will creating steam. That steam will used to drive turbine for various needs, one of them is electricity producer. The British Geological Survey describes geothermal energy as "a carbon-free, renewable, sustainable form of energy that provides a continuous and uninterrupted supply of heat that can be used to construct homes and office buildings and to generate electricity".
The conclusion is, we as humans should care and be responsible for the surrounding environment, especially for where we live, namely the earth.
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