# Super El Niño Forecast to Drive Atmospheric CO2 to Record 2027 Highs An exceptionally strong El Niño event threatens to accelerate global warming beyond critical thresholds. - **Source:** [Science & tech Articles | Mail Online](https://www.dailymail.com?ns_mchannel=rss&ns_campaign=1490&ito=1490) - **Published:** 2026-11-06 - **Topic:** [climate](https://brifing.si/c/climate) - **Original article:** - **On Brifing:** https://brifing.si/s/ff2c1cb0-3644-487d-9f6b-4e80a27e7d98 ## Historic Climate Phenomenon A powerful El Niño event, potentially the strongest in a millennium, is currently reshaping global weather patterns. Experts note this cycle, which began in June 2026, involves a significant warming of the central Pacific Ocean. This natural phenomenon is now intensifying, with models projecting a peak anomaly of 4C by December. ## Record CO2 Projections Atmospheric CO2 levels are expected to rise by approximately 3.51 parts per million in 2027. If realized, this surge would push total concentrations to a record 432.2 ppm. This forecast rivals the 2024 increase, which was heavily influenced by exceptional wildfire activity, highlighting the volatility of annual greenhouse gas accumulation rates. ## Mechanism of Absorption El Niño disrupts the planet's natural ability to sequester carbon by creating hot, dry conditions across tropical regions. Vegetation, soils, and oceans typically absorb human-released emissions, but this cycle reduces that capacity. Consequently, more CO2 remains in the atmosphere, compounding the long-term warming trend driven primarily by ongoing human-caused emissions. ## Temperature Lag Effects While the El Niño peak is expected in late 2026, its maximum impact on global temperatures will likely manifest in 2027. Global temperatures typically lag behind tropical Pacific warming by about three months. Projections indicate a 96% probability that 2027 will become the warmest year on record, reaching 1.74C above pre-industrial levels. ## Human Activity Context Despite the significant influence of natural climate variability, experts emphasize that human activity remains the primary driver of long-term warming. Natural cycles like El Niño substantially alter annual rates of change, but the underlying trend of rising emissions persists. Limiting warming to 1.5C requires a substantial, consistent reduction in these emissions. ## Global Health Risks The extreme heat associated with this event poses severe public health risks. A new tracking tool suggests an additional 370,000 lives could be at risk over the next six months. Nigeria, India, and Brazil are expected to face the highest impact, accounting for over one-third of projected heat-related deaths by March. ## Regional Weather Disruptions El Niño is linked to deadly storms, torrential rain, and winter chaos in the UK. The phenomenon alters trade winds, causing warm water to build up off South America. These shifts lead to severe weather disruptions globally, including super typhoons in the west Pacific and increased wildfire risks in regions like Indonesia. ## Long-term Climate Implications The inability to limit warming to 1.5C implies that the UK and the world will face more frequent extreme weather. Future decades will likely see persistent droughts, floods, fires, and rising sea levels. While the immediate CO2 spike may not alter next year's weather, it confirms a trajectory of sustained global warming. ## Sources covering this story - [Science & tech Articles | Mail Online — Super El Niño Forecast to Push CO2 to Record 2027 Highs](https://www.dailymail.com/sciencetech/article-16268515/Strong-El-Nino-CO2-record.html?ns_mchannel=rss&ns_campaign=1490&ito=1490) - [Carbon Brief — Super El Niño Forecast to Peak in December](https://www.carbonbrief.org/simply-staggering-rapidly-developing-super-el-nino-on-track-to-peak-in-december) - [Phys.org – Earth — 2026 Projected as Second-Hottest Year on Record](https://phys.org/news/2026-11-hottest-year-eu.html) --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._