A recent study by the Climate Center of the Sichuan Meteorological Bureau concluded that, based on the current general trend of climate change in giant panda habitats, these areas will become increasingly unsuitable for the survival and reproduction of giant pandas in the next 10 to 30 years. The mountain system will become more suitable for the survival of giant pandas due to the increase in temperature and precipitation, and will become a suitable climate zone for giant panda habitats. The sub-suitable areas will shift from southeast to northwest, so giant pandas will migrate to the northwest in the future. Which of the following, if true, best supports the above point? ['Giant pandas like a humid climate.', '"Dry and warm" climate is not conducive to bamboo growth.', 'The climate in the Northwest is getting wetter.', 'Giant pandas have the ability to migrate.']