For decades Pakistan has struggled to manage urgent crises, ranging from infrastructure woes to terrorism. While its policies focus on the short term conventional threats, a potentially devastating danger lurks in the shadows; Climate Change. Climate change is one of the biggest problems the whole world is collectively facing. The detoriation of the Earth’s climate can be seen and felt most obviously in south east Asia particularly in Pakistan. Climate change has serious implications for Pakistan which will only worsen with the passage of time unless adequate measures are taken.
When climate change occurs temperature can increase dramatically. When temperature rises, many different changes can occur on Earth. For example, it can result in more floods, droughts or intense rain, as well as more frequent and severe heat waves. Oceans and Glaciers have also experienced some changes; oceans are warming and becoming more acidic, glaciers are melting and sea levels are rising.
Climate change is one of the biggest issues since start of the twenty first century. Climate change is a change in global or regional climate patterns, in particular attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
“The rising average temperature of Earth’s climate system called Global warming is driving changes in rainfall patterns, extreme weather, arrival of seasons and more. Collectively global warming and its effects are known as climate change.”
According to Germanwatch, publisher of the climate change performance, Pakistan is the seventh most vulnerable country to Pakistan. There are two main causes of climate change; Natural and Manmade.
The earth climate is affected by natural factors such as changes in volcanic activity, solar output and the Earth’s orbit. The earth’s climate is dynamic and constantly changing through a natural cycle. There are number of natural factors responsible for climate change, some important of them are;
Here I shortly describe only one natural cause and one manmade cause of climate change;
When volcano erupts it throws large volume of Sulphur dioxide, water vapor, dust and ash into the atmosphere. Millions of tons of Sulphur dioxide reach on the upper level of atmosphere from a major eruption. The gases and dust particles partially block the incoming rays of the sun leading to cooling. Volcanic eruption of high magnitude can reduce the amount of solar radiation reaching the earth’s surface and changing atmospheric circulation patterns.
Climate change can also be caused by human activities such as;
Burning of fossil fuels
Fossil fuels are formed from the decomposition of buried organisms that died millions of years ago. They create carbon rich deposits that are extracted and burned for energy. They are nonrenewable and currently supply around 80% of the world’s energy. They are also used to make plastic, steel and a huge range of products. There are three types of fossil fuels Coal, oil and gas. When fossil fuels are burned, they release large amount of carbon dioxide, greenhouse gas, into the air. Greenhouse gases trap heat into our atmosphere, causing global warming. Already the average global temperature has increased by 1 degree centigrade.in this way fossil fuels are the basic manmade cause of climate change.
In conclusion we need to take part and try to stop global warming and other effects on climate
change. If Earth’s temperatures continue to rise in future, living things on earth would become
extinct due to the high temperature. If humans continue to contribute global warming, this world would be cooler and the high temperature we currently would decrease. If everybody as one take stand and try to end most of the climate changes that are occurring, this world would be a safer place to live.