Scientists are watching the Pacific Ocean for signs of a developing El Niño, a natural weather pattern that could push global temperatures to record highs by 2027. While several climate models predict that an El Niño is on the way, weather agencies warn that it is still too early to be certain.

Experts say if the pattern does form, it would likely reach its full strength by late 2026. This timing means the biggest impact on global heat would be felt in 2027, potentially making it the hottest year ever measured. One researcher noted that 2027 could easily surpass the heat of the last three years, which currently stand as the three warmest on record.

However, a different expert pointed out that we are no longer relying solely on natural cycles for record heat. Global warming caused by burning fossil fuels like oil and gas is now so intense that temperatures may keep rising even without a strong El Niño to drive them.