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Your search has returned 38 articles:
  • How a moth went to the dark side

    Scientists have just uncovered a gene that explains an example of natural selection often mentioned in textbooks. This gene turns mottled-grey peppered moths black. The gene may also control wing-color changes in brightly hued butterflies.

    A mystery emerged in Britain during the 1800s. An Industrial Revolution had just taken hold. Busy factories started to darken the skies with smoke...

    07:15 AM, June 23, 2016 Evolution, Animals, Pollution, Genetics
    Readability Score: 7.2
  • Common water pollutants hurt freshwater organisms

    PHOENIX, Ariz. — People are constantly releasing new pollutants into the watery environment. Some may be bits of plastic we can see. Others may be chemicals that wash down the drain or get flushed down the toilet. We may not see those chemicals, but three teens have shown that some polluting wastes can harm freshwater organisms, such as water fleas. But even these can play important roles in...

    12:00 PM, May 19, 2016 Environment, Pollution, Ecosystems, Young Scientists
    Readability Score: 6.8
  • Breathing very dirty air may boost obesity risk

    Air pollution is bad for our lungs. It may not be great for our waistlines either, a new study in rats finds.

    China's capital city of Beijing has some of the worst air pollution in the world. On really bad days, its air can host more than 10 times as many tiny pollutant particles as the World Health Organization says is safe for human health. In a new study, rats breathed in this air....

    07:00 AM, April 4, 2016 Pollution, Body functions, Toxicology
    Readability Score: 7.5
  • Tiny air pollutants are big, big killers

    WASHINGTON, D.C. — Air pollution is now the world’s fourth leading cause of early death. It killed some 5.5 million people in 2013 alone. And those numbers are only likely to grow, reports an international team of researchers. They just shared the grim news, here, at a major science meeting.

    Air pollution includes many substances that can cause illness and death. The new research focused...

    08:18 AM, February 24, 2016 Pollution, Health
    Readability Score: 7.4
  • Using dolphins to find unknown ocean pollutants

    SAN FRANCISCO, Calif. — Marisa Trego is trying to solve a riddle. The marine biologist wants to find long-lasting ocean pollutants that no one knows about — yet. They could be toxic, causing health problems in wildlife and people. She studies dolphins to find clues about these pollutants. But when you don’t know what you’re looking for, how can you find it? Trego’s solution: Look in fat.

    07:00 AM, January 27, 2016 Animals, Pollution
    Readability Score: 7.6
  • Paris meeting yields climate agreement

    On December 12, delegates to the United Nations climate change meeting outside Paris, France, came to a final agreement. They agreed to curb the worst effects of climate change by limiting global warming to “well below” 2° Celsius (3.4 °Fahrenheit). Representatives of 195 countries agreed to the blueprint for action.

    For perspective, last year, the average temperature across all land and...

    20:08 PM, December 12, 2015 Pollution, Sustainability, Weather & Climate, Science & Society
    Readability Score: 7.9
  • Table salt and shellfish can contain plastic

    Scientists have found tiny plastic bits, known as microplastics, in salts collected from supermarkets across China. The researchers analyzed 15 brands of salt. They turned up plastic bits in table salt extracted from seas and lake water. They also found plastic bits in rock salt mined from underground deposits. By far, however, sea salt contained the most plastic. In a second study, the same...

    07:00 AM, November 15, 2015 Pollution, Oceans, Nutrition
    Readability Score: 7.5
  • Plastic trash travels up to Arctic waters

    Plastic trash has infiltrated the Arctic. Two new studies have spied bags, fishing rope and tinier bits of rubbish in the Barents Sea.

    This sea sits north of Norway, Sweden, Finland and Russia. It mixes with the Arctic Ocean, which is even farther north.

    “We often think that the filthy habits we have where we live don’t go as far as the Arctic,” says Erik van Sebille. He studies...

    07:00 AM, November 8, 2015 Pollution, Sustainability, Oceans
    Readability Score: 6.9
  • Stuffy classrooms may lower test scores

    Study hard. Get plenty of sleep. Eat a good breakfast. Each of these things can help students do their best on exams. Now scientists say another feature might also boost test scores: fresh air.

    Students in stuffier classrooms did worse on standardized tests than did students in buildings with fresher air, two new studies found. The effect was small. But in one of the studies, it held up...

    07:00 AM, September 30, 2015 Environment, Brain, Pollution, Teaching Science
    Readability Score: 7.7
  • Weed killers may go from plant to pooch

    Many people treat their lawns with weed killers — also known as herbicides — to rid themselves of unwanted plants, such as dandelions. Most people know to keep small children away from the grass after it’s been sprayed. That’s because these chemicals can be dangerous if children touched the treated lawn and then put their hands to their mouths. New data show that herbicides also can end up in...

    07:00 AM, September 24, 2015 Animals, Agriculture, Pollution
    Readability Score: 7.0

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