The demand for various sources of energy is increasing day by day. This increased demand has different consequences on our environment, such as- burning of fossil fuels causes air pollution and also increases greenhouse effect. Also, these sources are exhaustible in nature and may not be available in near future, if consumed at the current rate.
There are various renewable sources of energy such as solar energy, wind energy etc., which can be used to replace exhaustible and non renewable sources. But, then, the cost of installing their plants, their availability is not reliable.
Hence, we should try saving these fuels, if we want to save them for our future needs.