The year 2024 is expected to be the hottest on record, with average global temperatures surpassing the Paris Agreement target of 1.5 degrees Celsius above the pre-industrial period. This increase has been partly attributed to the El Niño climate conditions. However, in 2025, La Niña conditions are predicted to emerge, slightly cooling global temperatures. Despite this, 2025 is still likely to be one of the three hottest years on record. The World Meteorological Organisation states that the cooling impact of La Niña on global temperatures is expected to be weak and short-lived. This increase in temperatures is due to the heat-trapping greenhouse gases in the atmosphere.
El Niño and La Niña are two opposing climate conditions in the Pacific Ocean that can affect weather patterns globally. El Niño occurs when the trade winds weaken or reverse, leading to warmer waters in the eastern Pacific. In contrast, La Niña is characterized by stronger trade winds pushing warm waters further west, causing sea surface temperatures to be cooler. Both El Niño and La Niña episodes happen irregularly every two to seven years and can last for 9 to 12 months. These phenomena can affect weather patterns across the world, with La Niña associated with rainier-than-normal conditions in some regions and an increased likelihood of flooding and intense hurricane seasons.
The World Meteorological Organisation predicts that La Niña conditions could emerge between November 2024 and February 2025. However, the cooling impact on global temperatures is expected to be weak and short-lived. Even with the emergence of La Niña, the long-term trajectory of rising global temperatures due to greenhouse gases in the atmosphere remains unchanged. Meteorologists forecast that 2025 will have extremely high temperatures, despite the presence of La Niña conditions. In comparison to previous El Niño years, such as 2016, the forecasts for 2025 are significantly warmer.
In 2024, it is expected that global temperatures will exceed 1.5 degrees Celsius above pre-industrial times, a benchmark set by the Paris Climate Agreement. While this may not be considered a breach of the agreement, it highlights the urgency of addressing climate change. Scientists emphasize that persistent breaches of this threshold over 20-30 years would signify a significant impact on the climate. The relationship between climate change and the phenomena of La Niña and El Niño is not entirely clear, according to some scientists. As global temperatures continue to rise at an alarming rate, it is essential to take action to mitigate the effects of climate change and reduce greenhouse gas emissions.
Overall, the predictions for 2025 indicate that while La Niña conditions may slightly cool global temperatures, the planet is still experiencing rapid warming. The impact of La Niña on temperatures is expected to be weak and short-lived, with 2025 likely to be one of the three hottest years on record. The connection between climate change and phenomena like El Niño and La Niña emphasizes the need for further research and understanding to address the challenges posed by global warming. As the world grapples with the effects of climate change, it is crucial to take action to mitigate its impact and work towards a sustainable future.
