The BIGGEST problem with clean energy

Compressed air is cool but high pressure compressors are expensive to produce and maintain!  A cheaper option would be hydraulic compression of spring steel...!!! Using solar to produce hydrogen to fuel turbines is another great solution..!! I brainstormed both of these storage methods 20 years ago as an engineering student..!!  Glad to see some progress being made.  Unfortunately, energy conversion produces heat no matter what the source is!  The higher the population,,,,, the more energy we need,,,, the more heat we release...!!! It's a no win scenario..!! The only way to reduce our impact on climate change is to reduce population!!!  Pretty simple math!