Too Dry or Too Wet

Many different changes
      Climate change does not affect every place the same way.  Most places will see more moisture.  But some places will be drier.
       A warmer climate means more water will evaporate, or change from liquid to a gas.  The liquid water is in our oceans and other bodies of water.  Water gas, or vapor, goes into the air.
Failing water
      The added water vapor in the air means that there will be more precipitation.  But this moisture doesn't fall evenly across the Earth.  Some places get too much, some get too little, and some get just enough.
      If the air above the Earth is warm, it can hold more water.  So more rain or snow may fall at once, causing stronger, more destructive storms.  But more time may pass between storms.
Extreme weather
     As the climate changes, extreme weather increases.  For example:
          * New York City had record-breaking snowfalls in January.
          * Last spring, heavy rains caused massive flooding in Tennessee and Arkansas.
          * Record heat waves spread across Europe and Asia last summer.