Officials say an explosion at a hydrogen and nitrogen product manufacturer in Mississippi has caused an ammonia leak and ...

Researchers are one step closer to understanding how some plants survive without nitrogen. Their work could eventually reduce ...

Honnie Leinartas spends her days poking through the musty basements and drafty attics of the U.S. Midwest, taking a look at ...

Plumbing leaks can sneak up on you-slowly, quietly, and usually when you're not looking for them. By the time you notice the ...