‘Fight for humanity’: Avoiding a climate catastrophe means acting now

2 September 2026

Climate and EnvironmentRecord heat waves, deadly flooding and extreme weather reflect an ever-warming planet poised to soon breach safe temperature limits, according to a UN report released on Tuesday, but doubling down on climate action now could avoid a climate catastrophe.

Key pointsRapid, collective and global action is vital to cap the temperature rise at 1.5°CClimate action can reverse current trend by slashing methane pollution, protecting land, forest and oceans and accelerating the phaseout of fossil fuelsEvery fraction of a degree will cost lives, destroy livelihoods, deepen inequality and push ecosystems closer to irreversible damageThe scorching heat in the northern hemisphere in recent months, raging wildfires and deadly floods are a warning of what lies ahead, UN Secretary-General António Guterres said.He recalled that the historic 2015 Paris Agreement on climate change saw world leaders pledge to keep temperature rise to the 1.5°C limit above pre-industrial levels, which scientists say is critical to avoiding the worst climate devastation.Indeed, the world is failing to keep that promise, according to the new report from the UN Environment Programme (UNEP)“The fight for 1.5 degrees is the fight for humanity,” he said. “We are set to breach the 1.5°C limit within the next few years.”‘Every fraction of a degree will cost lives’There are no good outcomes if temperatures remain above 1.5°C consistently, warned UNEP chief Inger Andersen.“Across the globe, extreme heatwaves are already proving that climate impacts will strike faster, hit harder, and last longer, costing more lives and causing deeper disruption,” she said.“Now is the time we must double down on climate action. We can and must get on the right path. By cutting greenhouse gas emissions, strengthening resilience and adaptation and ensuring exceedance of 1.5°C is as small and short as possible.”