What is climate change?
The word climate means the average weather conditions over a number of years,including temperature, wind, and rainfall.When we talk about climate change, we mean the unusual changes in the Earth's weather patterns that have happened over the last 100 years.
It is true that the weather is always changing, and sometimes the weather changes in ways we really don't expect. For example, we might have a warm, sunny day in the middle of winter, or a cold, windy day in the middle of sunmmer.