Earth

  1. Climate

    Analyze This: Climate change could make food less healthy

    Levels of important nutrients are lower in crops exposed to high levels of carbon dioxide, a greenhouse gas. How high? Try levels expected to be typical 30 years from now.

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  2. Oceans

    More than half the world’s ocean area is actively fished

    Fleets harvest fish from 55 percent of the world’s total ocean area. Just a handful of countries play an outsized role fishing the open ocean, far from coasts.

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  3. Earth

    Scientists Say: Inclusion

    As rocks form slowly, they can trap things in their timeless clutches. A material trapped inside a mineral is called an inclusion.

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  4. Ecosystems

    Exploring the mysteries of Cuba’s coral reefs

    Researchers are studying the mysterious lives of creatures in and near Cuba’s coral reefs. What they learn could help protect ocean life globally.

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  5. Ecosystems

    Migrating crabs take their eggs to the sea

    Cuba’s colorful land crabs connect swamp and sea with their yearly mass migrations. Protecting their routes can help other animals too.

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  6. Genetics

    Explainer: DNA hunters

    Snippets of DNA can be left behind by a passing organism. Some researchers now act as wildlife detectives to identify the sources of such cast-off DNA.

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  7. Physics

    Explainer: What is thundersnow?

    Wacky weather produced lots of thundersnow during New England’s recent winter storms. Some scientists now suspect Mother Nature got some human help.

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  8. Environment

    Household products can really pollute the air

    Auto exhaust isn’t the only major sources of air pollution, indoors and out. A new study finds a laundry list of household products can — when used by millions — match the contributions of traffic.

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  9. Environment

    Fish get pooped living in polluted water

    Living in polluted water can tire fish out, a new study finds. This can make it harder for them to find food and avoid being eaten, themselves, by predators.

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  10. Climate

    Super-tiny pollutants may help fire up fierce storms

    Tiny pollutant particles floating in air may help create clouds and wind, strengthening storms.

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  11. Agriculture

    New ‘tattoo’ could lead to drought-tolerant crops

    Scientists create stick-on 'plant tattoo.' It measures how efficiently crops use water, a key to better identifying breeding stock for more drought-resistant crops.

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  12. Animals

    Rising carbon dioxide could leave tiny lake dwellers defenseless

    Rising carbon dioxide in freshwater lakes may change how predators and prey interact.

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