Almond trees bloom in mid- to late February in Central California, and it’s a big deal — pollinating them is the largest managed pollination event in the world. Some 1.4 million beehives come to the ...

This summer, millions of people across the eastern U.S. woke up one June morning to apocalyptic orange skies and thick, choking wildfire smoke. Over the summer, massive Canadian wildfires blanketed ...

Exposure to wood smoke can have different effects on the respiratory immune systems of men and women -- effects that may be obscured when data from men and women are lumped together, according to a ...