All the people in their daily lives contribute a bit to this change in the climate. Everybody should give these points a good, serious thought:
Electricity is the main source of power in urban areas. All the gadgets run on electricity generated mainly from thermal power plants. These thermal power plants are run on fossil fuels (mostly coal) and are responsible for the emission of huge amounts of greenhouse gases and other pollutants.
Cars, buses, and trucks are the principal ways by which goods and people are transported in most of our cities. These are run mainly on petrol or diesel, both fossil fuels.
People generate large quantities of waste in the form of plastics that remain in the environment for many years and cause damage.
People use a huge quantity of paper in their work at schools and in offices. They do not ever think about the number of trees that they use in a day.
Timber is used in large quantities for construction of houses, which means that large areas of forest have to be cut down.
A growing population has meant more and more mouths to feed. Because the land area available for agriculture is limited (and in fact, is actually shrinking as a result of ecological degradation!), high-yielding varieties of crop are being grown to increase the agricultural output from a given area of land.
However, such high-yielding varieties of crops require large quantities of fertilizers; and more fertilizer means more emissions of nitrous oxide, both from the field into which it is put and the fertilizer industry that makes it. Pollution also results from the run-off of fertilizer into water bodies.
