Climate refers to long-term fluctuations in the earth’s overall temperature with massive and permanent ramifications. Human activities have driven up the earth’s temperature and fundamentally changed the world around us. The main causes for the fast change in climate all over the world are the greenhouse effect, deforestation (cutting down of trees), increased use of motor vehicles and use of chlorofluorocarbons leads to global warming that is a rise in overall temperature of planet earth. Global warming leads to melting of glaciers which causes floods and a great destruction to human life and wildlife.
GREEN house effect
A greenhouse is normally something useful as it helps us grow things like tomatoes out of season that’s because it’s nice and warm inside a greenhouse. But it has adverse effects on our climate as the gases produced in the greenhouse such as water vapor, carbon dioxide, nitrous oxide, methane, and CFCs. Let the sunlight in but keep some of the heat from escaping the glass walls of a greenhouse. The more greenhouse gases in the atmosphere the more heats get trapped thus strengthening the greenhouse effect thus increasing the earth’s temperature.
Deforestation that is cutting down of trees is a great contributor to climatic changes. Trees are being cut down due to overpopulation, to make more land available for construction of roads and hotels, for agricultural expansion, to make paper from timber. Forests play a vital role in purifying the air and regulates the water cycle by evaporation and precipitation. Forests also absorb the radiant heat of the sun in the summer season thus reduces the heating effect. Most important of all Forests alleviate climate change by consuming the harmful greenhouse gases that fuel up global warming while breathing out oxygen.so by cutting down the trees, we will be unable to get all these advantages from the forests and hence failed to lower the temperature rise.
Excess use of motor vehicles
In this contemporary era, man is totally dependent upon motor vehicles. There are more vehicles on the road then humans. The vehicles emit very detrimental gases in the atmosphere which results in air pollution which ultimately leads upwards jostle in temperature and widespread of many harmful diseases such as asthma. So, we should use fewer vehicles as the emission of carbon dioxide and nitrogen dioxide gives rise to global warming. We should walk more which will reduce pollution ultimately again to our health. use those vehicles which have catalytic converters fitted in them as they convert harmful gases into harmless gases causing less harm to our environment.
Chlorofluorocarbons are man-made chemicals that are very stable in the atmosphere. they are used in aerosol body sprays, refrigerators, sprays, and air conditioners. Due to their stability the CFCs rise in the stratosphere where they are broken down by ultraviolet rays. this causes them to release chlorine. It then reacts with oxygen and leads to the chemical destruction of the ozone layer. the release of chlorofluorocarbons is said to have depleted 80% of the ozone layer. harmful ultraviolet rays are entering directly in the atmosphere raising the temperature and changing the climate fastly all over the world.
While the rapid rate of climate change is caused by humans. Humans are also the ones who can combat it if we work to replace fossil fuels with renewable energy sources like solar and wind which do not produce greenhouse gas emissions. By doing this We might be able to prevent some of the worst effects of climate change all over the world.