CLEAN : Mexican gray whales endangered by rising water temperatures

The video discusses a long-term study that began in the 1970s, focusing on environmental changes and their impact on marine life, particularly small invertebrates sensitive to temperature and salinity changes. It highlights the lifespan and migratory patterns of whales, noting that some whales observed in the 1970s are still present today, returning annually to give birth.

In what ways might global warming impact the ecosystem mentioned in the text?

What is the significance of the whales returning every winter to give birth?