Some plants may use less water under global warming, says a major study published in the journal Nature.
Higher levels of CO₂ in the atmosphere the pores in grass leaves to partially close, lessening the amount of water that can escape.
“Warmer temperatures lead to drier soils as more water is transpired by plants into the atmosphere,” researchers said. “But we found that with rising CO₂ levels plants don’t have to open their stomatal pores as long to take in the CO₂ needed for photosynthesis, and thus conserve more water.”
Read more at University of Sydney