After a twelve-month set of climate records driven by global warming it is time to take stock of how we’re impacting the planet as a species. One of the driving forces behind a record year of global warming is the now waning El Niño system. With its counterpart, La Niña, due to pick up in 2024, we ask NOAA oceanographer Mike McPhaden what to expect from this transition and if we are headed for a turbulent hurricane season.