Climate change has increasingly affected people's life, especially growing extreme weather ravaged many countries this year. Whether climate change is an imminent crisis and how to tackle the frequent natural disaters, climate experts give different answers.

Bjorn Lomborg, president of the Copenhagen Consensus, said that people should see that global warming not only intensified problems of heat deaths but also reduced cold deaths around the world.

But Lomborg also stressed it does not mean people should do nothing to deal with global warming. Instead, Lomborg said, "we can start thinking about smart ways to tackle global warming."

"The frequency of extreme weather has been increasing on the global scale since the 1950s," said Liu Junyan, climate campaign manager of Greenpeace East Asia, according to a report of the Intergovernmental Panel on Climate Change.

The measures that Liu proposed to restore the resilience and reduce the vulnerability of human society included establishing a more systematic and downscaled climate risk assessment and taking more risk management measures.

Liu also said, "the fundamental measure to tackle it is to take ambitious climate actions and limit global warming within 1.5 C."

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