Urgh I wish you would turn 30 already mrs. This late 20's arrogant modern idealism is draining.
What I meant to say is that clean technology is a scarce (slightly more accurate than finite) resource, and that scarcity makes the cost of high penetration of clean energy increasingly prohibitive, especially with the counterfactual business case's of "dirty" technology.
We might be able to provide enough energy for everyone. We are exceptionally unlikely to be able to deliver it cleanly and sustainably.