Climate change is the changing temperature of the earth.
In our case, the temperature of the earth is increasing. This is due to the thickening of the Greenhouse Gases which trap more and more heat.
Human activity is the main reason that these greenhouse gases have become a problem.
The effect of the rising temperature will be to cause more floods and storms and create even more droughts.
Scientists believe that the earth cannot cope with more than a temperature increase of more than 2 degrees.
All these things will mean that food crops are destroyed, or that crops can't grow at all. As the impact causes the sea levels to rise, people living near coastal areas will need to move or they will need to find ways to keep back the rising seas (like flood barriers).
Click here find out more about sea level rises.
To find out more about temperature watch the video on Global Warming here.