Can someone tell me how much computing power would be needed for someone to hit the 28-characters "AndCausingCLimateChange6666" in address ?
With Tools like Vanitygen or VanitySearch.
That is an enormous number of possible combinations, roughly equal to 7.5 × 10^48.
To generate a 28-characters in address, it could take trillions of years on a single consumer-grade GPU.

To make a transfer you only need to specify the address where you want to transfer. To enter an address, all you have to do is press the keys on your keyboard or whatever you're typing the characters with.