If ....is..... , people will .......
The future real conditional includes two clauses and is used to describe something that will (or likely will) happen in the future.
This construction uses either if or when.
The verb in the if/when clause uses the simple present form. The verb in the other clause uses the simple future form.
Do not use the future modal will in the if/when clause.
For imaginary future situations, there are three possible constructions. Review the sentences below to determine the appropriate fit for your meaning.
Future Real Conditional
If I answer the phone, you will sit quietly.
Future Unreal Conditional
If I answered the phone tomorrow, you would sit quietly.
If I were answering the phone, you would be sitting quietly.
If I were going to answer the phone, you would be sitting quietly.