If global warming is real then why is the next decade predicted to experience cooling?

Flip on the AM radio and you'll hear that question asked over and over again. Here is the answer: because you stupid fools have once again taken someone's research and read into it what you wanted to hear. Which is why you all have managed to miss this part of the paper you're citing as evidence that global warming is a hoax.

[T]he results were just the initial findings from a new computer model of how the oceans behave over decades and it would be wholly misleading to infer that global warming, in the sense of the enhanced greenhouse effect from increased carbon emissions, had gone away.

Gristmill explains further. Meanwhile, Real Climate challenges the accuracy of this forecast in the first place. (See here and here.)