BY: Warda Sohail
Global warming is the greatest challenge being faced by our planet, it is one of the current and widely discussed factors. It, in fact, is the increase in the temperature of the earth’s neon-surface air.
Global Warming has far-reaching impact on biodiversity and climatic conditions of the planet. Several current trends clearly demonstrate that global warming is directly impacting on rising sea levels, the melting of ice caps and significant World Wide climate changes. In short, global warming represents a fundamental threat to all living things on earth.
Global average temperature has risen significantly during the past century. The prevailing scientific view is that most of the temperature escalation since mid-20th century have been caused by increases in atmospheric greenhouse gas concentrations produced by human activity.
Unfortunately, the imbalance which we have created between our life and earth is already showing the disaster signs in the form of flood, cyclones, landslides, tsunami, drought, etc. If the imbalance continues to rise, one day this will pose a question mark on the existence of this planet.
Carbon dioxide which is an important constituent of environment is causing a warming effect on the earth’s surface. It increases the evaporation of water into the atmosphere. The warming causes more water droplets to be evaporated. The CO2 level is expected to rise in future due to ongoing burning of fossil fuels and land use change.
Trees play a significant role in the global carbon cycle. They are the largest land-based mechanism for removing carbon dioxide from the air. Deforestation is checking these positive processes. It is the second principle cause of atmospheric carbon dioxide burning of fossil fuels and land use change.
There is a close relation between global warming and population growth. Today the large population on earth is using the technologies which are destructive for the earth. Approximately, 80 percent of atmospheric CO2 increases are due to man’s use of fossil fuels either in the form of coal, gas or oil. A large portion of carbon emission is attributed to the burning of gasoline in internal-combustion engine of vehicles. Vehicles with poor gas mileage contribute the most to global warming.
The forestation can be of great help in this regard. Planting more trees and reducing timber cuts World Wide will help restore the imbalance. We must follow on environmental policy of ‘reduce, reuse, recycle’, i.e. promoting the reuse of anything.
The use of fuel-efficient vehicles should be promoted as these vehicles have lower emissions of harmful gases. Every individual should be aware of the importance of the protecting environment. Besides, eco-friendly technologies must be promoted, and must be substituted with the technologies which cause great emission of global warming gases. Public awareness institutions can be of great help in this regard, because unless each and every individual is aware only government’s efforts cannot bring desired difference.