“We are hurtling toward climate chaos.” — The State of the Climate 2025
The evidence behind that phrase is frightening. 2024 was the hottest year in recorded human history, likely hotter than any period in 125,000 years. Behind the rising temperatures lies a planetary breakdown that is undeniable by any measure of evidence or rationality.
Earth’s vital signs are flashing red
According to the World Meteorological Organization, atmospheric CO₂ hit 423.9 ppm in 2024, a record jump of 3.5 ppm — the largest since measurements began in 1957. Methane and nitrous oxide also reached new highs. The Indicators of Global Climate Change 2024 update finds that nearly all warming since pre-industrial times is caused by humans: 1.22 °C of a 1.24 °C total. The last decade alone saw warming by another 0.31 °C, with the rate now 0.27 °C per decade — the fastest ever recorded. These findings echo the Climate Change Tracker, which warns that the Paris 1.5 °C limit will likely be breached around 2030, and 2°C by mid-century, if emissions aren’t reduced.
Rising seas, collapsing systems
The sea level has already risen 22.8 cm since 1901, and the pace has doubled in the past 30 years, according to Climate Change Tracker’s Yearly Global Mean Sea Level Rise update. Around 680 million people in low-lying regions face worsening flooding and erosion. Ocean heat and acidity are both at record levels, triggering the worst coral-bleaching event ever recorded, while Greenland and West Antarctica may already have passed irreversible tipping points — locking in metres of sea-level rise even if emissions were stopped today.
Climate crisis, health crisis
The Lancet Countdown describes today’s trajectory as “unsustainable, unhealthy and ultimately unlivable.” Heat-related deaths have surged 23 percent since the 1990s, now claiming more than 546,000 lives a year. Wildfire smoke caused 154,000 deaths in 2024, while fossil-fuel pollution kills 2.5 million annually. Europe, warming twice as fast as the global average, faces lethal heatwaves and the spread of diseases like dengue. These are not abstract “impacts” — they are proof that the climate crisis is also a public-health emergency. Meanwhile, fossil-fuel use keeps climbing. The State of the Climate 2025 shows coal, oil and gas consumption at record highs in 2024, 31 times greater than total renewable consumption
The real tipping point is political
The science is clear: the world has already entered dangerous territory. We know the way out of the catastrophe — by ending fossil fuels, protecting forests, adopting plant-rich diets, we could still stabilise the planet. The surest way to end this catastrophe is to choose ecosocialism instead of capitalism. But the longer we wait, the more difficult it will be to recover.
(A longer version of this article can be found on The Ecosocialist website)