Some day gas and crude oil will be a thing of the past. With innovations here and there. In your own opinion what will replace gas and crude oil in the international market.
Well, it's hard to picture life without crude oil, since so much around us is built from it. But the same way we once couldn't imagine life without coal, candles, or horse-drawn carts, change will come. Step by step, something new will replace it. And what exactly is that "new", or what can replace it and still be healthy for the people & environment? Too many questions... and by the way, "some day" could mean many years from now, even decades or centuries...