Question About a Scam

I have a question about "climate change" and carbon credits.

If you are convinced that "climate change" is a direct result of human energy consumption, then why are you not raising a ruckus over carbon credits? Here is what I don't understand. If someone burns energy that compares to 1.5 times "normal use", and another person only burns energy at a level of 0.5 "normal use", why is it reasonable to allow the person who burns "too much" to "buy carbon credits" from someone who doesn't burn energy in a wasteful way?

I just don't understand it.