The climax occurs when Scrooge visits the site of his own grave during the visit from the ghost of Christmas future. He comes to a realization about his own treatment of others, leading to the story's resolution, where Scrooge turns over a new leaf of generosity: visiting his nephew, helping Bob Cratchit, and paying for Tiny Tim's medical treatment. He begins a new life of charity rather than greed, and the story ends happily as Scrooge becomes a benefactor rather than a miser.
The climax (most heightened point of interest) on a story line usually corresponds to the crisis (point of decision beyond which there is no return). In A Christmas Carol that would be the moment when Scrooge has a change of heart and repents of his past ways. I agree that this is the scene when he witnesses his own grave and reckons with the demon of greed within him once and for all.
The climax of any piece of literature is the highest point of interest (not action) wherein the reader understands how the story will resolve (and to what extent the beginning balance is either regained or destroyed.)
In order to determine the climax, then, for A Christmas Carol, the reader must define the main, dominating idea or theme of the work. What is Dickens' message? The notes linked below offer three thematic ideas that work together to provide Dickens' most probable dominant theme: reconciliation and restoration to relationship are always possible, as long as life endures.
Knowing this, the climax of the story occurs when Scrooge asks the final spectre if the shadows of Christmas yet-to-come are only shadows, and not certainties. The reader understands at that point that Scrooge is a changed (or at least changing) man. The remainder of the book illustrates this conversion in a light and entertaining way. Even the mood of the text works to demostrates the truth of Scrooge's transformation.
The climax of the story occurs when Scrooge wakes up and discovers he has a chance to start over again. He goes to his window and asks a passing boy if it's still Christmas. When he discovers it is, he has the boy buy a huge turkey, puts on his best clothes and visits his nephew. The next day, Bob Cratchit comes to work late, but Scrooge raises his salary and announces he will pay Tiny Tim's medical bills. Tiny Tim recovers and Scrooge is able to live a much happier life.
The climax of A Christmas Carol comes at the moment that Scrooge sees his own gravestone. Everything the three Spirits have shown him (the rising action) have led to this moment: the stark realization of the lack of value in his own life. From this point on, the rest of the story is all falling action showing the turn his life takes from that moment of realization.
This NOT written by me, all credits goes to Alexandra .J from cha cha.com
The climax of the story occurs when Scrooge wakes up and discovers he has a chance to start over again. He goes to his window and asks a passing boy if it's still Christmas. The moral of the story is about generosity and love for all your fellow man. ChaCha!