Environmental factors can have various effects on ecosystems. In August 2005, Hurricane Katrina caused significant damage in several states along the Gulf Coast, including Alabama, Mississippi, and Louisiana. Thousands of people were evacuated from their homes due to flooding and other damage caused by the storm. What environmental impact would Hurricane Katrina not have caused?

Hurricane Katrina could directly damage coastal habitats, disturb marine ecosystems, and disrupt animal migration through flooding, storm surge, and habitat loss. An early onset of spring is caused by seasonal climate patterns, not by a single hurricane. Therefore, the environmental impact Katrina would not have caused is an early onset of spring.

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