ADVERSE EFFECT OF CLIMATE CHANGE IN OUR ENVIRONMENT.

ADVERSE EFFECT OF CLIMATE CHANGE IN OUR ENVIRONMENT.

Climate change is the most pressing issue at the moment over the world. The cause of climate change can be divided into two categories those are due to natural causes and those are created by men. Global worming is the main natural reason and using harmful chemicals in every day life the main reason created by man. The climate is changing rapidly that result in the rise of the earth’s average temperature. The global climate change and its consequences are leaving a bad impact on the developing countries to face natural calamities and poverty. Climate change impacts include temperature rise, greenhouse and carbon dioxide gas emissions, erratic rainfall, salinity intrusion, rise of floods, cyclones, storm surges and draught, ice sheets melting which will seriously affect the agriculture and livelihood, especially at the poor. Bangladesh, for its geographical locations, is likely to be the most affected.

However, Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time. Climate change may refer to a change in average weather conditions, or in the time variation of weather within the context of longer-term average conditions. Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have been identified as primary causes of ongoing climate change, often referred to as global warming.

There are many causes of Climate Change in Bangladesh. The energy emitted by the Sun that reaches the Earth and is carried further to different parts of the planet by winds and ocean currents is one of the main reasons for climatic change. Mostly human activities are responsible for climate change. Human induced activities are burning of fossil fuel, deforestation, leading of luxurious life, industrial activities etc. These activities enhance the emission of greenhouse gases (methane, carbon-di-oxide, sulfur-di-oxide etc.). Greenhouse gases emission to an extent that nature system is now not able to assimilate these gases. As a result the earth becomes warm and increases temperature, rate of melting of snow and ice in polar region.  Serious consequences will be a rise in sea levels, which will endanger coastal areas and small islands. The new age technology is adding to the emission of carbon on the planet which in turn is having a negative impact on the climate. Apart from this, the orbital variations, plate tectonics and volcanic eruptions also cause changes in the climate.

Climate change has started endangering biodiversity, food and fresh water supply, impacting human health worldwide, especially in developing countries like Bangladesh due to low adaptive capacity. Climate change will affect humans as well as plants and animals. As the sea level rises and the movements of the winds, tides and clouds change, it will impact the world’s environment. This will result in heavy rainfall in some parts of the world and drought in other parts.

These climate changes has a direct impact on agriculture, particularly in India. If seasons change, farmers will not be able to plan their activities related to agriculture. Crop production is being affected and there is severe shortage of food. If the climate change is very fast, plants may not be able to adapt, leading to extinction of species.

The level of the sea is also rising due to climatic changes as the water expands when it is heated. The water from the melted ice caps also raises the sea level. Due to the rising sea level, people from coastal regions has started  to migrate. This has started to create  problems related to mass exodus, like unemployment and shortage of food.

So, we human beings should be careful about our activities so that our activities may not be the causes of climate change.