By Nnenna Hemeson, Chief Editor
Editor’s Note:
The UN has finally declared that we have missed the 1.5°C target. This isn’t just another climate headline — it was the death of an idea that defined a generation of sustainability work. This editorial marks that turning point. It is part obituary, part manifesto — a call for courage, imagination, and accountability as we enter the age of overshoot.
Overshoot is the New Reality
The numbers are simple, the story is not. Overshoot means every decade from now will test the limits of our systems, our politics, and our empathy.
We’re not talking hypotheticals. 2024 became the first full year above 1.5°C. The carbon budget is gone. Every additional ton of CO₂ now writes the difference between discomfort and devastation.
“We have failed to avoid overshooting 1.5°C in the next few years.”
The guardian
— António Guterres, UN Secretary-General
The Quiet Violence of Delay
Every fraction of a degree delayed is an act of harm disguised as diplomacy.
Each “temporary” overshoot means lost ecosystems, dead reefs, vanished harvests — losses no technology can restore. Yet the negotiations continue to play out like theatre, while the world’s biggest emitters still approve oil fields and call it transition.
Overshoot didn’t happen by accident. It was negotiated into existence.
The Death of the Dream — and the Birth of Accountability
“Keep 1.5 alive” once symbolised hope. Now it’s the echo of promises unkept.
This is our clarity moment. No more greenwashing disguised as optimism. The overshoot strips away illusion — leaving only questions of power and accountability:
- Why do fossil subsidies still outpace renewable investments?
- Why do the poorest nations still beg for adaptation funds while the richest expand pipelines?
- Why does “net zero” still mean “not yet”?
If 1.5°C is gone, then accountability is the only inheritance worth fighting for.
Adaptation is Not Surrender
Adaptation must mean redistribution — of wealth, resources, and responsibility.
The world’s most vulnerable should not be left to build resilience alone. Loss and Damage funding must be permanent, funded by those who profited most from delay.
We see adaptation as design — reimagining how culture, commerce, and creativity can build systems that regenerate instead of extract. This is not resignation. It’s re-invention

What Leaders Must Do Now
The time for promises is over. The next decade will be defined by decisions — not declarations.
1. End fossil expansion.
Stop approving new oil, gas, and coal projects. Set legal phase-out deadlines and stick to them. Every new barrel is a bet against our collective survival.
2. Redirect the money.
Shift the trillions in fossil subsidies toward renewables, adaptation, and equity. Rebuild economies to reward decarbonisation, not delay. Every dollar we divert becomes a vote for the future.
3. Center justice in every deal.
Put frontline, Indigenous, and youth leaders at the table — not as tokens, but as decision-makers. Climate policy without justice is just colonialism in new packaging.
4. Protect natural systems as critical infrastructure.
Forests, oceans, and wetlands are not scenery; they’re our life-support systems. Defend them with the same urgency we reserve for national security.
5. Tell the truth, relentlessly.
Stop dressing delay in the language of optimism. Hope means nothing without transparency. Honesty is strategy — and silence is complicity.
Intergenerational Debt
Every child born today will live their entire life in a planet above 1.5°C. They inherit not only our emissions, but our excuses.
We can’t rewrite the past, but we can stop compounding the debt. The question is no longer “How did we let this happen?” — it’s “How do we make sure it doesn’t get worse?”
Every tenth of a degree we save is an act of love, a political decision disguised as physics.
And culture will decide how far we go. Because culture shapes what we value — beauty, consumption, belonging, aspiration. These aren’t distractions; they’re the architecture of the world to come.
We will either design cultures that regenerate or ones that collapse. The choice is ours, and the deadline has already passed.
From Grief to Grit
Grief is human. Paralysis is optional.
The death of 1.5°C doesn’t mark the end — it marks the moment we start fighting for every fraction that remains. Each tenth of a degree avoided is people’s homes spared, country’s harvest saved, future generations protected.
So let’s drop the illusion of endless time. Let’s replace mourning with movement, slogans with systems, and fear with strategy.
History won’t care whether we believed in 1.5°C.
It will remember what we built after it slipped away.