Question

Since the late 1970's, what phase of the PDO has become more dominant?

Answer 1

Since the late 1970s, the warm or positive phase of the PDO has been more dominant, influencing global climate patterns.

Step-by-step explanation:

The student asked about the dominant phase of the Pacific Decadal Oscillation (PDO) since the late 1970s. The PDO is a long-term ocean temperature pattern in the Pacific Ocean that has cycles lasting approximately 20 to 30 years. Since the late 1970s, the warm or positive phase of the PDO has become more dominant, characterized by warmer water in the eastern Pacific and cooler water in the western Pacific.

This phase can influence global climate patterns, including weather conditions and marine ecosystems on the Pacific coast and in other parts of the world.