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  • The resistance: can viruses save us from drug-defying superbugs?

    Bacteriophages, or phages, are viruses that kill bacteria by latching on to and entering target cells and then multiplying and killing the host cell. Phages only attack bacteria, they can’t enter human cells, but the phage must be specific to the bacteria's DNA, which presents an obstacle because most health systems lack the capacity for such testing. To overcome this, researchers are developing phage cocktails that could be applied more widely, similar to antibiotics. A few locations around the world currently use phage treatment, particularly to treat the six most virulent antibiotic-resistant bacteria.

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  • ‘Our biggest challenge? Lack of imagination': the scientists turning the desert green

    A Dutch group of engineers known as the Weather Makers has an ambitious plan to regreen the Sinai Peninsula — the stretch of desert connecting Egypt to the rest of Asia. Their efforts would restore forests, wetlands, and even adjust the weather for the region. This form of ecosystems regeneration could help with food security and mitigate the effects of climate change. Their process of changing an entire ecosystem can be controversial, but initial tests have shown how this could work on a large scale.

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  • How Do You Kill an Invasive Species? Bring in a Bigger, Meaner Species to Eat It

    An insect that makes its home on eastern hemlocks in Nova Scotia has the power to wipe out the tree species if left unchecked. Scientists are looking to a strategy called biological control — a historically controversial approach — that would introduce a new predatory species to kill the insect. After rigorous lab testing showed a small black beetle only attacked their targets and didn’t disrupt other ecosystems, they released them in 2003 at an orchard on Vancouver Island. Results show they have been somewhat effective, but it’s unclear if it will completely solve the problem.

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  • This seaweed can fight climate change

    Symbrosia, a clean-tech startup in Hawaii, is taking seaweed from the ocean and turning it into a powder that can be used to feed livestock to reduce the amount of methane they produce — a key contribution to greenhouse gas emissions. The company worked with an organic farm in Upstate New York to test the product and found that sheep given a high dosage of the supplement had up to 70 percent reduction in methane emission. Creating the powder takes weeks and a lot of steps, but the startup is hopeful the product can become a mass-produced commodity.

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  • A Booster Shot For Detecting COVID-19 Mutations

    When the SARS-CoV-2 variant emerged in the United Kingdom, scientists in Britain were able to quickly identify it and warn other countries thanks to the use of genome sequencing. Now other countries, such as Denmark, are investing in genome sequencing to get ahead of the next potential outbreak.

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  • From Reviled to Adored

    Purnima Devi Barman has been building trust and working with various community members to save a stork species called the greater adjutant in India. Because of her work, she has inspired more than 10,000 women and their families to help in bird conservation activities and the number of storks in the region has increased to as many as 1,200. This type of community approach could be used in other places as a model for wildlife conservation efforts.

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  • Human remains found at Multnomah Falls identified after 42 years

    Oregon law enforcement agencies partnered with a Virginia laboratory, Parabon NanoLabs, to use genetic genealogy to learn the identities of people whose remains were found long ago but never identified. To give peace of mind to families who never knew for sure of their loved ones' deaths, researchers use DNA samples taken from the human remains to compare to publicly available DNA profiles shared by people using home DNA tests. This can identify a victim's family tree. So far, Parabon has identified six of the 10 people it has tested for Oregon. The state has more than 150 unidentified skeletal remains.

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  • Soil: The Dirty Climate Solution

    More and more farmers are turning to regenerative agriculture techniques as a way to cut down on costs, increase crop yields, and sequester carbon into soil as a way to reverse the effects of climate change. One farming family in Minnesota switched to no tillage farming and also planted cover crops and used animals to fertilize their land. Some people question their methods, but these farmers saw their cost of production decrease and increased the amount of organic matter in their soil compared with their neighbors.

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  • After 3 years and $1.5 million devoted to testing rape kits, Alaska made one new arrest

    Despite hopes that testing a backlog of rape kits would reveal many new serial-rape suspects, Alaska's three-year push to test 568 kits under the federally funded Sexual Assault Kit Initiative led to only one new prosecution. The reasons the program fell short of expectations include a lack of usable DNA samples, errors by investigators, cases in which victims and suspects had died or victims no longer wished to proceed, or the kits revealed no evidence that wasn't previously known. Alaska is now footing the bill to test more kits, which contain physical evidence collected after a rape.

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  • A Bold Plan to Save the Last Whitebark Pines

    After a fungus has nearly wiped out the whitebark pine species in North America, scientists and conservationists are coming together to restore the species. The trees offer food to various animal species and are important to drinking and agricultural water supplies. A pilot project in Montana has planted up to 125 acres each year of whitebark pines, but the restoration process is expensive and time consuming. By combining traditional seed collecting efforts with gene sequencing, scientists hope to make these trees resistant to the fungus.

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