US Secretary of State John Kerry said Monday the evidence for climate change was beyond dispute but it was not too late for international action to prevent its worst impacts.
"The science is clear. It is irrefutable and it is alarming," Kerry told a climate conference in Majuro in the Marshall Islands in a video address from Washington.
"If we continue down our current path, the impacts of climate change will only get worse."
Kerry said without strong, immediate action, the world would experience threats to critical infrastructure, regional stability, public health, economic vitality, and the long-term viability of some states.