Parts of Northern Europe have been baking under unusually high spring temperatures this week, with warmth that would feel more at home in the height of summer arriving months ahead of schedule. For many, it has been a welcome if unexpected treat. For climate scientists, it is one more data point in a pattern that is becoming impossible to ignore, and a new report from the World Meteorological Organization makes clear that what feels exceptional today is on course to become entirely routine.
The WMO, working in partnership with the UK Met Office, has published a report projecting global temperature trends through to 2030. Its conclusions are stark. There is a 91 percent chance that at least one of the next five years will breach the 1.5 degree Celsius threshold, the internationally agreed limit set in 2015 that world leaders committed to staying below in order to avoid the most catastrophic consequences of climate change. There is also an 86 percent chance that one of those years will set a new record for the hottest year in recorded history, surpassing the record already set in 2024.
The report projects that every year between now and 2030 will land somewhere between 1.3 degrees Celsius and 1.9 degrees Celsius above the baseline temperatures of the late 1800s, before industrial activity began reshaping the planet’s atmosphere. That range is not a comfort. Even at its lower end, it represents a world meaningfully hotter than the one in which human civilisation developed, and at its upper end, it represents warming that scientists say will trigger cascading effects across ecosystems, weather systems, and the rhythms of daily life that billions of people depend on.
The consequences of a hotter planet are not abstract or distant. They are floods, droughts, and heatwaves of the kind that swept across Europe this week. They are crop failures and water shortages. They are coastal communities that find themselves underwater with increasing frequency. And they are the compounding pressures on populations that are already vulnerable, in regions that have contributed least to the emissions driving the warming they are being forced to absorb.
What makes this moment particularly significant is the acceleration. The WMO report speaks not just of warming continuing but of warming speeding up. The trajectory through to 2030 suggests the world is not holding the line. It is falling further behind it, at a pace that leaves less and less margin for the kind of gradual, negotiated response that international climate diplomacy has historically preferred.
For Northern Europeans enjoying a warm May weekend, the gap between the lived experience of unusually pleasant weather and the scientific reality of what is driving it can feel wide. Sunshine is not easy to experience as a warning sign. But that is precisely what scientists are asking people to hold in mind: that the same forces producing this week’s warmth are the forces that produce the deadly heatwaves, the catastrophic flooding, and the record-breaking temperatures that have become a fixture of global news cycles in recent years.
The WMO report is not a counsel of despair. It is a projection of where the world is headed under current conditions, and projections exist to be acted upon. But the window for action that changes those projections in any meaningful way is narrowing with each passing year, and each passing heatwave that arrives a season too early.
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