New research finds that as climate change increases ozone levels, pollinators will have a harder timing finding plants that feed them. A rose by any other name would smell just as sweet, but a rose after climate change may not smell much at all. That’s going to be a problem for the bees that pollinate a third of the world’s food supply, according to new research. Flowers and other plants rely on microscopic scent molecules to attract the bees and other pollinators that feed on them. Climate change is going to disrupt that process, mostly because of ground-level ozone, which is projected to increase over the coming decades. The research, published in the journal New Phytologist, found that flowers’ fragile scent molecules break down more quickly as they are exposed to greater levels of ozone. “Ozone is a highly reactive pollutant that enhances the degradation of all plant volatiles in general, reducing their lifetimes,” said the study’s lead author, Gerard Farré-Armengol of the Centre for Ecological Research and Forestry in Barcelona, Spain. Increasing ozone levels will make flowers less attractive to pollinators because the plants won’t maintain their scent for as long or over as great a distance, a change that […]
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