- Politics and Social Issues
Global Warming And What Causes Global Warming
Global warming is talked about everywhere today. If you don’t know what it is yet, global warming is the increased air temperature on the planet that is responsible for degrading the quality life on earth. The higher temperature has led to the melting of glaciers which in turn caused the rise in sea levels, higher quantity and poor or irregular timing of rainfall that affect agricultural output, extreme weather conditions, increase in mosquitoes and mosquito-borne diseases and desertification of land.
What causes global warming?
Most of the heat from the sun that penetrates the ozone layer is absorbed by the earth. Some of it is reflected back to the atmosphere. Greenhouse gases like carbon dioxide, water vapor, ozone and methane trap the heat reflected from the earth. This heat has no escape and once trapped, contributes to the warmth of the air on earth’s surface.
It is generally agreed in the scientific community that human activities are the greatest contributor to global warming. On top of the list are factories that emit smoke, burning of firewood and fossil fuel from vehicles – with carbon dioxide as the leading gas that trap the heat from the sun.
When air on earth’s surface is heated, it leads to increased atmospheric temperatures which results in water evaporation. The evaporated water turns into one of the gases that traps even more heat reflected from the earth’s surface. Some of the human activities that cause global warming are felling of trees, pollution of the environment, mining coal and oil which lets trapped methane escape and the ever-rising population.
Effects of Global warming
As I have mentioned, global warming is becoming a catastrophe. When the heat is trapped in the air, it increases the temperature of the air around it. The rise in temperature results in the melting of glaciers and water from the melted snow flow into the ocean. The flow of water into the ocean leads to the rise of sea levels and the danger is that populated areas and islands can be submerged in water. A good example is Maldives.
Another effect of global warming is climate change. Climate change affects agriculture, therefore reducing food production and exposes the populace that depends on the food to starvation. Global warming also increases the extreme weather intensity leading to cyclones, flooding and draught.
The changes in weather patterns, high precipitation and clearing of forests leads to the extinction of species, increase in instances of diseases and general disruption of human and animal life.
How to reduce global warming
Since we know what causes global warming, it will be easier to reduce it. It takes an individual to reduce global warming – every single person can make a difference. Some of the things you can do include:
- Burn less fossil fuel. This means using electric and hybrid cars or using public transport.
- Reduce energy consumption. You can do this by switching off appliances at home when not in use.
- When you cut down a tree, plant two.
- Recycle paper and plastic to reduce pollution.
- Minimize the use of timber and wood products.
Although there are natural causes of global warming, human activities contribute are responsible for most greenhouse gas emissions. Unless we take action now, in a few thousand years there will be no planet for humans to live in.