Here's what world leaders had to say about the U.N.'s new climate change report

The United Nations on Monday published a report that delivered dramatic warnings about the effect of human-induced climate change on the planet – and how much worse it could get. read more

Here are some reactions:

"The forest fires and floods of recent weeks delivered a clear language. And so does the Intergovernmental Panel on Climate Change report: we need to cut the carbon in our atmosphere now."

"Today’s IPCC Working Group 1 Report is a 'Code Red' for humanity ... This report must sound a death knell for coal and fossil fuels, before they destroy our planet."

"We know what must be done to limit global warming – consign coal to history and shift to clean energy sources, protect nature and provide climate finance for countries on the frontline."

"We can’t wait to tackle the climate crisis. The signs are unmistakable. The science is undeniable. And the cost of inaction keeps mounting."

"This is an issue that affects all of us and every aspect of our lives. An effective response must be given, without wasting time."

"The impacts of the climate crisis, from extreme heat to wildfires to intense rainfall and flooding, will only continue to intensify unless we choose another course for ourselves and generations to come."

"The planet is on fire, and our hair should be on fire about this! We need to move faster to deploy, deploy, deploy clean energy and make our communities more resilient."

"It’s not too late to stem the tide and prevent runaway climate change, but only if we act decisively now and all act together."

"If we keep warming to 1.5C, we are still facing half a metre of sea level rise. But if we stop warming from reaching 2C, we can avoid a long-term 3 metres of sea level rise. That is our very future, right there."

"We are paying with our lives for the carbon someone else emitted. We will take measures soon to begin to address this injustice, which we cannot merely accept."

"We are damaging the climate in such a way for the next generations that this will certainly make the socioeconomic difficulties in the future much, much worse than in our generation ...

"My personal opinion is that it will be impossible to limit the increase in temperature to 1.5 degrees."

"We project the Arctic to be practically sea ice free in September at least once before 2050 under all the considered scenarios, with more frequent occurrences for greater warming levels."

"Today's IPCC report shows the clock is ticking as we witness the devastating impacts of climate change. But as IEA's Net Zero 2050 scenario shows, we have solutions to cut emissions & limit rises in temperature. It is imperative that countries seize the moment at COP26"

"If this IPCC report doesn’t shock you into action, it should. The report paints a very sobering picture of the unforgiving, unimaginable world we have in store if our addiction to burning fossil fuels and destroying forests continues."

"The IPCC has provided new, powerful means for everyone everywhere to hold the fossil fuel industry and governments directly responsible for the climate emergency."

"There is no reason to shy away from urgent action. Stopping the construction of China's coal-fired power plants will greatly contribute to global climate momentum. Doing so is economically sound and is ultimately for China’s self-interest."

"Too many 'net zero' climate plans are being used to 'greenwash' pollution and business-as-usual."

"Investors must use their influence to push decision makers to make the bold emission reductions required to limit the most severe consequences of climate change."

Reporting by Kate Abnett, Nina Chestney, Jake Spring and Kanupriya Kapoor; Editing by Kevin Liffey and Lisa Shumaker.