If we consider the last 650,000 years, there have been seven cycles of glacial advance and evacuation. The ice age was ended at 7,000 years ago and started a modern climate era. Human civilization was started. Most of these climate changes are created to very small variations in Earth’s orbit. With the change of orbit there changes the amount of solar energy our planet take in. Another cause of climate-changing is the greenhouse effect. There are certain gases in the atmosphere which block heat from escaping. We are observing changes in rainfall pattern, they have triggered long ago when the industrial revolution was set in motion. The industrial revolution saw the developed agrarian nations of these times explore the “uncivilized” world as they sought additional resources to match the need for resources. During this period several things took place including huge harvesting of crucial vegetative cover to provide fuel and raw materials, increased combustion of non-renewable fuels which release harmful gases in the atmosphere.
Greenhouse Gas and Climate Change
With the increased combustion of fossil fuels, there are a number of gases such as carbon dioxide, methane, nitrous oxide and fluorinated gases that are emitted into the atmosphere. While these gases are not essentially harmful, they are meant to exist in the atmosphere in controlled or reasonable quantities. Carbon dioxide, for instance, is a by-product of respiration and plant activity. In nature through these and other mechanisms mother earth can regulate these to ensure the atmosphere operates at optimal levels. When these conditions are sustained, rainfall patterns are not sporadic but remain regular and of the adequate amount. However, what took place after the industrial revolution and even today is constantly high emission of harmful gases into the atmosphere that continues to adversely contribute to climate change. This is not to mention the fact that as the population continues to rise, more land is being cleared for commercial activity and fewer vegetation remains. Because of this trend worldwide and the obvious changes in climate nations around the world have established guidelines that should change the course of environmental degradation.
Climate change has to affect sea life. If a species can’t find comfort in the sea, he will try to migrate to a good environment.
Some species can’t adapt fast enough to adjust with changing situation, which might lead to their disappearance.
Population and the Future
For many even today, the subject of climate change is still a distant thought. However, in reality, this question deserves much more attention given the statistics and the implications these imply. Due to increased technology and advances in medicine in many countries around the world mortality has been reduced. For this reason, the population of the world is growing relatively steadily and with this increase, the environment will continue to degrade further unless some steps are taken to avert the trend. The situation is further complicated by the fact that it takes resources such as energy to produce food for this increasing population. In essence, it would appear that if humanity continues to stumble blindly into the future we could well be the reason for our own extinction. While this may seem a far-fetched thought, science has proven that the depletion or damage of the atmosphere by these and other harmful gases provides an avenue for dangerous UV rays in sunlight to reach the inhabitants of planet earth. This is not to mention the fact that within 30 years much of the world’s oil will be depleted, the main source of fuel today. It is these questions that make the issue of climate change one worth discussing and investigating as it could well be the solution to sustaining survival on earth.