Which atmospheric outcome results when increased Earth's axial tilt exceeds 23.5 degrees, impacting Hadley cells?

💡 Explanation

When Earth's axial tilt increases, the Hadley cell boundaries shift further north and south because the zone of maximum solar heating changes, expanding the descending, dry air associated with subtropical deserts. Therefore expansion of subtropical arid regions results, rather than other effects that are related to jet streams or stratospheric events.

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