There's no accepted global policy on what to do about asteroid impacts.

For the first time in history, we have the chance to change the path of a celestial body. Let's realize what we're talking about here. We would be slightly changing the mechanics of our solar system to enhance our survival. That is gigantic!

We need early warning systems, technologies to deflect an asteroid - and we need political preparedness as well. It needs to be clear who is to decide what, who launches the rockets, who presents which bills to its citizens. This is a planetary decision. We need to do this all together. Or it will not happen.

Anytime we can save lives or prevent the destruction of property, we should do it.

We could not wipe ourselves out with a nuclear war. I do not want so sound too positive. It would be a catastrophe, but it would not be a final one. We are not powerful enough for that. An asteroid could be that powerful. That is why we need to do our homework.

I am interested in climate change and other topics too. But this thing is so huge, in the worst case we are talking about the end of our civilization.

There's no accepted global policy on what to do about asteroid impacts.