Urban parks reveal disparities among Twin Cities neighborhoods

Proximity to green space provides a wide range of physical, mental, social and environmental benefits. By that measure, the Twin Cities—where 99% of all residents live within a 10-minute walk to a park—should be a model ...

Wintertime spike in oceanic iron levels detected near Hawaii

Around the world, phytoplankton in the upper ocean help to cycle key nutrients and regulate Earth's climate by absorbing carbon dioxide. These photosynthesizing organisms rely on dissolved iron as an essential micronutrient, ...

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