The world is far off track from its climate goals, scientists and environmental groups warn

Kaiser said immediate measures in the transport, buildings and land-use sectors would be needed to bring Germany back on course.

“Climate protection is not a burden,” he said, “but the foundation for freedom, security and prosperity in the future.”

Johan Rockström, director of the Potsdam Institute for Climate Impact Research (PIK), said many had left the 2015 Paris summit with a sense of relief. “Today, a decade later, we must acknowledge that we have failed so far,” he said.

Despite advances in renewable energy and electric mobility, global emissions continue to rise, Rockström said.

”Global warming is accelerating, the oceans are heating up faster than expected, and important ecosystems such as tropical coral reefs are approaching critical tipping points,” he added.

Exceeding the 1.5-degree threshold is now unavoidable, he said, warning that this “puts the world at risk.”