Climate Change and Renewable Energy

Global energy demand continues to increase year after year due to increasing population and technological advancement. More than 50% of energy is produced by conventional sources, which release greenhouse gases resulting in global warming and leading to climate change. Climate change is one of the major concerns all over the world. It adversely affects aquatic ecosystems along with flora fauna and human beings. Economic development and energy demand cannot be compromised so the only way to combat climate change is renewable energy. Harnessing of renewable energy is emphasised all over the world. About 25% of energy demand is harnessed by renewable sources, mostly wind and solar energy. Biomass energy is another renewable source attracting the global eye towards it. Hydroelectric power is also widely harnessed all over the world. Other important renewable energy sources include tidal energy and geothermal energy. There is a great need to develop sustainable economic technology to harness this renewable energy. Tidal energy has great potential to generate electricity, but it may affect the ocean ecosystem. Therefore, there is a great need to develop sustainable technology to harness it. There is a great need to develop technology for harnessing geothermal energy. Renewable energy is the only way to combat climate change. Therefore major objective of the paper is to thoroughly review available renewable energy sources, their capacity, and the gap in harnessing this energy.