Climate is different from one part of the world to another. Some areas are hot all year, and some are cold. Some areas are dry all year, and others are wet. Most areas have climates that are warm or hot in the summer and cool or cold in the winter. Most parts of the world get rain at some times of the year and not others. Some parts of the world have oceanic climates and others have alpine climates. These differences cause people to live differently.