Let's see, Clark has no powers, has just been exposed to kryptonite again, so he REALLY doesn't have any powers.
Lois has followed Trask over the cliff, and since we know we don't want Trask to survive by grabbing some handy branch, there probably won't be one for Lois either. I wonder how Lois will be saved?
Oh, wait, that's right, this story is called Backwards. So, since in the (Frontwards?) universe that we know from the series, Lois is always saved by Superman and they go on to live happily ever after... In this world Lois must actually fall to her death and Clark lives a lonely miserable life from this point on.
Whew! Glad I figured that one out.
Tank (who thinks it's too bad about Lois though)