Climate science
The Data Doesn't Lie
El Niño, ocean warming, and the accelerating crisis — what the science actually shows.
What Is El Niño?
El Niño is a periodic warming of surface waters in the central and eastern tropical Pacific Ocean. It occurs every two to seven years and disrupts weather patterns worldwide — triggering droughts, floods, and extreme heat across multiple continents simultaneously.
What was once a natural cycle has been supercharged by human-caused climate change. Warmer baseline ocean temperatures mean El Niño events are arriving more intensely, lasting longer, and pushing global temperature records to new extremes.
Ocean Heat: The Buried Story
The ocean is Earth's primary heat sink. Since the 1970s, it has absorbed more than 90% of the excess energy trapped by greenhouse gases. This stored heat doesn't disappear — it fuels stronger hurricanes, bleaches coral reefs, and disrupts marine food chains.
In 2023, ocean surface temperatures shattered records by an unprecedented margin. Scientists described the anomaly as 'out of this world.' The combination of long-term warming and a strong El Niño created conditions with no historical parallel.
The 2023 ocean temperature anomaly was so far outside the historical record that scientists initially questioned their instruments.
— Nature Climate Change, 2024
Key Milestones in Climate Science
- 1896
Svante Arrhenius calculates that doubling CO₂ would raise global temperatures by 5–6°C — the first quantitative climate prediction.
- 1958
Charles Keeling begins continuous CO₂ measurements at Mauna Loa. The 'Keeling Curve' becomes the most important dataset in climate science.
- 1977
Internal Exxon research confirms fossil fuel combustion will cause significant global warming. The findings are buried.
- 1988
NASA scientist James Hansen testifies before Congress: global warming is already underway. The world takes notice — briefly.
- 2015
Paris Agreement signed. Nations commit to limiting warming to 1.5°C above pre-industrial levels. Emissions continue to rise.
- 2023
Earth records its hottest year in 125,000 years. Every month from June through December sets an all-time temperature record.
Data sourced from NOAA, NASA GISS, IPCC AR6, and peer-reviewed climate science literature.