Green energy will not replace fossil fuels.
First, using renewable energy has many geographical restrictions while using fossil fuels do not have any barriers in geographical aspect. Renewable energy can only generate electricity effectively in certain environmental conditions. For example, tidal energy can be used when there are places with great tidal change throughout the day. Hydroelectric power can generate power when there are wide and deep valley, together with continuous supply of river flow in the entire year. However, fossil fuels can be burnt to provide energy when there is just a power station. It is much easier to construct a power plant rather than finding a place to match the geographical conditions to develop renewable energy. Therefore, fossil fuels will definitely replace renewable energy.
Second, developing renewable energy is much more pricey than burning fossil fuels to provide electricity. Buying equipment, e.g. solar panels, to generate solar energy, or constructing facilities, such as dam and turbines, to generate hydroelectric power are not cheap. These often costs phenomenal sums of money in order to satisfy the needs of electricity for all of us around the world. Despite renewable energy is a kind of green energy, most countries, especially the less developed countries, do not have enough capital to develop non-polluting energy. Thus most of the nations think that it is not worth to spend a massive amount of money to generate green energy. Instead, they will just continue to generate electricity by combustion of fossil fuels, which is cheaper.
Yet there is a point of view that suggests the richer countries can provide capital to support the poorer countries to develop renewable energy. In fact, the USA, which is a more developed country, has left the United Nations Climate Change Conference after Donald Trump has become the president of the USA. He thinks that the USA does not have any responsibilities to halt climate change by using more non-polluting energy instead of just burning fossil fuels. Not to mention he will financially support the less developed countries to generate green energy.
In conclusion, although we all know that renewable energy is more environmental friendly than burning fossil fuels, combustion of fossil fuels will still be the main way to generate electricity for all of us. Undoubtedly, it is difficult for every nations in the globe changing to use green energy and eliminating fossil fuels.
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