Not everyone in world looks forward to joys of spring. While many people take delight in observing glory of newly-formed buds revealing their delicate blossoms, others dread this annual phenomenon. That's because blooming plants bring seasonal allergies like hay fever. National Phenology Network (NPN) in USA has warned hay fever sufferers that spring has arrived up to four weeks earlier than usual. pollen that causes so many symptoms is already causing misery. To make matters worse, warmer weather will prolong hay fever season. The NPN said: "It's little unsettling. It perhaps isn't surprising, given trajectory our planet is on."
Phenologists, climatologists and meteorologists are blaming climate change on unseasonably warmer weather. National Oceanic and Atmospheric Administration reported that U.S. winter's average temperature was 2.7 degrees warmer than 20th century average. Lauren Casey, meteorologist with Climate Central, told CNN news agency that climate change is resulting in earlier and longer seasons for plants, causing greater prevalence of pollen. She said pollen was " enemy" of people who suffer from allergies. She said pollen can trigger asthma attacks and aggravate mold allergies. Another scientist said: "Acting on climate change really does matter for people's health."