According to the last paragraph, how does climate change affect the blue  whale?

* Hướng dẫn giải

Dẫn chứng: Blue whales would have to migrate further (perhaps 200-500 km more) to reach and feed at these food-rich areas where they build up reserves to sustain themselves for the rest of the year. These longer migration paths could increase the energy costs  of migration and reduce the duration of the main feeding season.