climate change is a change in the usual weather found in a place. this could be a change in how much rain a place usually gets in a year. or it could be a change in a place's usual temperature for a mouth or reason.
climate change is also a change in earth' climate. this could be a change in earth's usual temperature. or could be a change in where rain and snow usually fall on earth.
weather can change in just a few hours. climate take hundreds or even million of years to change