Half factory, half unkempt-looking greenhouse, the great glass structure that is Biosphere 2 is open to the public, to students and to scientists conducting climate change experiments.

• 这个大型的玻璃结构看起来一半像是工厂，一半像是一个乱糟糟的温室，这就是生物圈2号。它现在正在向公众、学生、以及进行气候变化实验的科学家们开放。