US President Donald Trump, responding to a question about climate change, said on Monday that American wealth is based on energy and he will not jeopardize that for dreams and windmills, Reuters reported.

“I feel that the United States has tremendous wealth. The wealth is under its feet. I’ve made that wealth come alive. ... We [the US] are now the No. 1 energy producer in the world, and soon it will be by far,” Trump told reporters when asked about his views on climate change.

“I’m not going to lose that wealth, I’m not going to lose it on dreams, on windmills, which frankly aren’t working too well,” he added.

Trump called himself an environmentalist, noting that he had filled out so many environmental impact statements as part of his work as a real estate developer.

“I want the cleanest water on Earth. I want the cleanest air on Earth. And that’s what we’re doing,” he told reporters. “And I’m an environmentalist, a lot of people don’t understand that. I have done more environmental impact statements probably than anybody that’s ... ever been president. And I think I know more about the environment than most people.”