UN Chief Urges Immediate Climate Action on World Environment Day

United Nations Secretary-General António Guterres warned on Friday that the world is facing mounting environmental threats, urging governments, businesses and communities to accelerate climate action as global temperatures continue to reach record highs.

In a message marking World Environment Day, Guterres said warning signs of environmental degradation are becoming increasingly evident, noting that the past eleven years have been the hottest ever recorded.

"The damage goes far beyond rising temperatures," he said, citing polluted air, degraded land, collapsing ecosystems and accelerating biodiversity loss as growing challenges facing the planet.

The UN chief warned that these environmental pressures are already harming public health, destroying homes and worsening food insecurity around the world, particularly among vulnerable populations.

Guterres said the world is on course for a temporary overshoot of the internationally agreed 1.5-degree Celsius warming threshold, stressing that every fraction of a degree of additional warming would bring more severe consequences.

"Our task is to make that overshoot as small, as short, and as safe as possible — and rapidly bring temperatures back down," he said.

To achieve that goal, Guterres called for deeper cuts in greenhouse gas emissions and a faster transition away from fossil fuels toward renewable energy sources, describing renewables as the only sustainable path to lower energy costs and long-term energy security.

He also highlighted the need to reduce methane emissions, protect forests, land and oceans, and strengthen support for communities already experiencing the impacts of climate change.

The Secretary-General further urged developed countries to honor climate finance commitments to developing nations, saying such support is essential to protect lives, safeguard livelihoods and build more resilient economies.

Concluding his message, Guterres described the current period as a critical moment for global action.

"This is the moment to act — for our environment and for our future," he said.