El Nino Or La Nina 2025 Climate Change. What are el niño and la. El niño and la niña are two opposing climate conditions in the pacific ocean that affect the weather across the globe.
La niña, a phenomenon characterized by the cooling of the pacific ocean and which has been anticipated since september 2025, is already here.at the beginning of. El niño is part of the natural climate phenomenon called the el niño southern oscillation (enso).