The term ‘climate’, in its broadest
sense, refers to a statistical
description of weather and of
the related conditions of oceans,
land surfaces and ice sheets. This
includes consideration of averages,
variability and extremes. Climate
change is an alteration in the
pattern of climate over a long
period of time, and may be due to a
combination of natural and human-
induced causes. (The Science of Climate Change)
Climate can be caused by Natural factors such as volcano eruptions and variations in the earth’s orbit but man made factors outweigh the natural one.
Green House Gases such as carbon dioxide, methane and nitrous oxide are mainly responsible for the warming up of the atmosphere, oceans and melting of ice plates and glaciers leading to rise in sea level.
Studies have shown that if the green house gases are controlled there can be a considerable reduction in global warming thus reducing climate change.
Manmade aerosols are also contributing to warming of the earth as they absorb the sun’s radiation which would have evaporated but to the sky.
However, the major contributor to green house effect which is water vapour retains most of the earth’s radiation making the earth warmer as it could be 33°C cooler if it wasn’t for that greenhouse effect.
Climate change happens over time due to changes in climate systems and if the current trends are not checked it is anticipated by experts that by 2100 there will be a considerable change in the earth’s temperature and it can be harder for some countries or impossible for them to manage.
Arrest Climate Change Now!