Passage Summary: Usually, when it gets warmer and more humid in northern Asia, crops grow better. We expect it to stay warmer and more humid all the time soon, but scientists say crop yields will actually go down.

Reasoning: Historically, higher temperatures and humidity have increased crop yields in northern Asia, and these conditions are set to become the norm, yet scientists predict yields will actually decrease.

Analysis: We are faced with a classic discrepancy: the very conditions that usually help crops are expected to lead to their decline when they become permanent. The 'paradox' lies in the shift from temporary spikes in temperature to a permanent change in the 'norm.' To resolve this, we need a piece of information that explains why sustained heat or humidity is bad, even if short bursts are good. Look for an answer that introduces a negative side effect of long-term climate change, such as the arrival of new pests or the depletion of soil nutrients, that would outweigh the benefits of the warmth.