Logic Puzzles

Start another fire
Is the right answer.

He sets a fire to his East.
Yes, and then can shelter on the now cool earth where there is nothing left to burn.

^Although this saves his life it leave his previously verdant Eden scorched and barren. After months of starvation he is reduced to wandering the blackened wasteland and dies when, half-mad with hunger, he stumbles off a cliff and plummets to the rocks below.
I particularly like this ending.