Climate change is one of significant issues that have been considered in recent years. According to Anderson (2009), most climate researchers recognise it is essential to reduce 80 percent of global greenhouse gas (GHG) emissions by 2050 to prohibit effects of climate change. Furthermore, carbon dioxide (CO2) is one of the most important causes to produce GHG which is combusted from heating, transportation and electricity generated by fossil fuels. However, one of the solutions for reducing CO2 emissions is using renewable energy to replace fossil fuel. In addition, renewable energy is generated by natural resources such as sunlight, wind and biomass which produce less or no pollution when generate energy. Furthermore, renewable energy will be demanded for approximately half of the worldwide electricity supplies to reduce CO2 emissions by 2050, which it is estimated by The International Energy Agency (Cited in Shi 2010).
This essay will focus on two forms of renewable energies which are solar power and biofuels. Firstly, solar energy has been widely used to generate heat and electricity recently. Moreover, it will show the benefits and also point out some drawbacks of solar energy. After that, the discussion will describe the second form of widespread renewable energy in the transport sector which is biofuels. Finally, it will reveal advantages and a disadvantage of this energy. This essay argues that renewable energies, which are solar power and biofuels have been extensively utilised in recent years. Furthermore, they have more advantages than disadvantages.
The sun is the largest source of energy, which is transformed to solar power for generating heat and electricity and has been widely used in recent years. According to European Union (2011), there are several applications to use solar energy for heating such as hot water at home, heating in factory and building and swimming pool. In addition, a cooling system also...