Kind of a weird message. The paltry amount of energy my screen time uses pales in comparison to the footprint left by massive careless corporations and the ultra-wealthy, and it would be far more effective at helping the environment to convince them to make even small adjustments.
Putting the onus on the average person just seems cruel. It leads to people like my wife desperate to do every little minor thing she can to adjust her footprint, making almost no difference in the grand scheme, while the real causes continue on unabated.
Hank Green did a great video about this on his channel recently.