Nitrogen is a neglected threat to biodiversity

Habitat destruction and the direct exploitation of species often occupy center stage in discussions of biodiversity perils. However, indirect harms, such as that posed by nitrogen pollution, remain underappreciated and poorly ...

Video: Why it hurts to eat hot peppers

You have probably had the burning sensation of eating a jalapeno or other tear-inducing pepper. What causes this painful fire in your mouth? The short answer is capsaicin. But what exactly is capsaicin? How does it work? ...

Why our native plants are not so special after all

New Zealand's native plant life is renowned by botanists the world over for its uniqueness. But scientists at Victoria University of Wellington are calling into question a long-held belief about our flora, saying that maybe ...

Playing 'tag' with pollution lets scientists see who's 'it'

Using a climate model that can tag sources of soot from different global regions and can track where it lands on the Tibetan Plateau, researchers have determined which areas around the plateau contribute the most soot—and ...

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