Allergies will be even more miserable in the future — thanks to global warming

It’s spring in California: the birds are chirping, the flowers are blooming, and my sinuses are so swollen they might just pop right out of my face.I’m one of the 36 million or so Americans lucky enough to suffer from seasonal allergies. And experts tell me that I might suffer from this eye-itching, sinus-pounding misery even more in the future. Warming global temperatures may lead to longer blooming seasons, and rising CO2 levels could help weeds and trees grow more, and faster. Tha