High carbon dioxide can create ‘shrinking stems’ in marshes

Source: Science Daily

For most plants, carbon dioxide acts like a steroid: The more they can take in, the bigger they get. But scientists have now discovered something strange happening in marshes. Under higher levels of carbon dioxide, instead of producing bigger stems, marsh plants produced more stems that were noticeably smaller.

https://www.sciencedaily.com/releases/2019/09/190925112958.htm