SSC CGL DEST Previous Year – Climate Change

The climate is commonly considered to be the weather averaged over a long period of time, typically 30 years. Somewhat more precisely, the concept of climate also includes the statistics of the weather such as the degree of day-to-day or year-to-year variation expected. The Inter-governmental Panel on Climate Change glossary definition is: Climate in a narrow sense is usually defined as the average weather, or more rigorously, as the statistical description in terms of the mean and variability of relevant quantities over a period of time ranging from months to thousands or millions of years. The classical period for averaging these variables is 30 years, as defined by the World Meteorological Organization. The relevant quantities are most often surface variables such as temperature, precipitation and wind. Climate in a wider sense is the state, including a statistical description, of the climate system. Rapid industrialisation has led to changes in the climate of our planet. The emission of green house gases has raised the average temperature of the earth. Global warming is leading to the melting of glaciers and rising of sea levels. Weather patterns are becoming unpredictable. Many regions that once enjoyed moderate rainfall are now experiencing droughts, while other regions face unprecedented flooding. Governments across the world are making efforts to reduce carbon emissions and shift to renewable sources of energy.