Krauss added that one of the reasons why working to address climate change is essential now is not because the world will end in 10 years but because what we do now will affect the future. With every year we wait, it will become more difficult to address the problems that may result from climate change.

He added that this makes the matter urgent because it is already happening and not something in the future. The effects of climate change will continue for hundreds or even thousands of years. But even in the next generation, the effects will be dramatic in parts of this planet, and it is better to think about them now.

The prominent physicist explained that science has proven that climate change is linked to humans and their industrial activities. Many people do not realize that even if we stopped all industrial activity, the Earth's temperature would not decrease by one degree.

He said if we had started doing this in 2011, we would have been able to reduce carbon production by 3.7 percent annually. But with every year you wait, it becomes more challenging to do so because the world will change dramatically in the next ten years, but with every year we wait, the future becomes more challenging to keep the Earth cool.

He pointed out that the oceans are affected by the heat of the planet, so their temperature has changed dramatically, adding, "If you calculate the amount of heat we have thrown into the oceans, it would be as if we dropped five atomic bombs into the ocean every second, 24 hours a day, over the past 25 years.”

“A huge amount of energy causes the oceans to expand. So, sea levels are rising, and half of that rise is due to the warming of the oceans. And since this energy is stored in the oceans, even if we stopped industrial activity today, their temperature will continue to rise,” he added.

Krauss warned that science predicted that sea levels would rise by a quarter of a metre due to thermal expansion by the end of this century. There is nothing we can do about that. But if we exclude all the other effects of melting glaciers and ice caps, sea levels are likely to rise by about a metre by the end of the century.

He added that if sea levels rise by 100 metres, every city worldwide will be underwater. He explained that this will not happen, but a rise of one metre will have significant effects, so we have to be prepared to deal with it.

He explained that some scientists find hope in applying geoengineering technology to prevent the Earth from warming, adding, “It may happen, but we do not know the negative effects. But there is something I learned recently, which makes me feel depressed, which is that if we apply geoengineering as a solution for the near future century, one of the things it will do is that the sky will no longer be blue, it will be completely white.”

Krauss said he believes the younger generation is more aware of climate change and its implications than their parents and that parents tend to bury their heads in the sand. “I hope the younger generation will be knowledgeable and more aware of the issue, and maybe in the future, when they become leaders, they will do something about it. It’s too late for parents, and I felt more hopeful about the future when I met young people,” he said.