As CO2 levels increase and the world warms, land use, precipitation and the availability of water will also change.
In response to all these disruptions, plants will emit greater levels of fragrant chemicals called biogenic volatile organic compounds.
That will then alter how plants interact with one another and defend themselves against pests, according to a major scientific review.
According to the scientists leading the review, the world may already be becoming more fragrant, as plants have already begun emitting more smelly chemicals. Read more.