Less petrichor

Where rain falls more frequently, there will be less petrichor because the aromatic compounds won’t have enough time to accumulate. And heavy downpours—which are increasing as the planet warms—are too forceful to trap the tiny air bubbles required to launch the scent into the air. Instead the compounds are diluted, pushed underground or mixed in surface floodwaters. — Read more in How climate change is altering petrichor, the glorious smell after it rains at Scientific American.