"Maybe it seems a little bit crazy. Uh, but New York is the center of communication in the world. And basically what I wanted to do with this show is to tell the world as much as possible that we have been looking at cities too much and that we should look at the countryside, and pay a lot more attention to the countryside than we are doing," he said.

"If you're in cities you barely notice kind of global warming. But if you're in the countryside, as soon as you go out of the city, you realize the weather is strange, or there are irregularities in terms of expectation," he said. "One of the key things that we are also showing is that this is an interesting moment, because all regimes, all political systems, are realizing that something has to be done."

"And whether they want to or not, they will have to communicate, and we'll have to collaborate. And one of the things we all know is that we have to keep nature in a more careful way," he said.

Koolhaas said he was very much encouraged that so many visitors, especially the youngsters, have shown such a strong interest in the exhibition.

"I think it means a lot. And also it means a lot that you see a young people reading. Yeah, they're reading the text. Supposedly young people are not interested in reading any more, but actually they read," he said.