Ground-level ozone reduces maize and soybean yields

Despite government regulations, ground-level ozone—an odorless gas that forms as polluting nitrogen oxides drift in sunlight across the countryside—continues to threaten crop quality and yield. In a new study, researchers ...

Managed bees spread and intensify diseases in wild bees

For various reasons, wild pollinators are in decline across many parts of the world. To combat this, managed honey bees and bumblebees are frequently shipped in to provide valuable pollination services to crops. But does ...

The astounding genome of the dinoflagellate

The dinoflagellates aren't happy. In good times, these tiny ocean creatures live free-floating in the ocean or symbiotically with corals, serving up—or as—lunch to a host of mollusks, tiny fish and coral species. Some ...

Structure of 'concrete disease' solved

When bridges, dam walls and other structures made of concrete are streaked with dark cracks after a few decades, the culprit is AAR: the alkali-aggregate reaction. AAR damages concrete structures all over the world and makes ...

Out with the old, in with the new: Telescope mirrors get new shape

Telescope mirrors of old basically came in one shape: they were round and fit nicely inside a tube. No longer. An emerging optics technology now allows these light-gathering devices to take almost any shape, potentially providing ...

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