GLOBAL WARMING AND CLIMATE CHANGE ESSAY 5 (300 WORDS)
There are many reasons behind climate change, some are natural and some are human activities. Climate change is not area or region specific, it s changing all through the world. Climate change occurs when atmospheric temperatures increase a lot which in turn causes many different changes to the earth such as more floods, intense rain, droughts, increase in rate of more frequent and severe heat waves, increase level of oceans, melting glaciers, warming oceans, sea water becoming more acidic, and so many. All these changes may become more frequent in the future decades and hugely challenge the society and environment.
In the few past centuries, human activities have increased the release of large amounts of carbon dioxide including other greenhouse gases in the atmosphere. Most of the green house gases come from burning fossil fuels which work as blanket around the earth and trap all the energy and heat available in the atmosphere and thus warm the earth surface. This effect is called as the greenhouse effect which triggers climate to change to the huge level and result in dangerous effects to the lives and ecosystems.
Such a warmer climate affects the availability of natural water supplies, crop production, agriculture, natural environment, safety, security, etc. Such huge climate changes are unavoidable however cannot be stopped at once.
Global warming has really affected and forced the climate to change over the last century throughout the world. Unusual increase in the earth’s average temperature is because of the high amount of greenhouse gases release due to burning fossil fuels and other human activities. Some of the green house gases having more influence on the climate are CO2, water vapour, dinitrogen-oxide, and methane.
According to the research, it has been recorded that almost 30 percent of the heat by incoming sunlight gets reflected back to the space through clouds and ice but because of global warming ice are melting. It means there are no left sources to send heat back to the space and all are getting collected in the earth atmosphere and affecting the climate.