UN scientists say ozone layer depletion has stopped
The protective ozone layer in the earth's upper atmosphere has stopped thinning and should largely be restored by mid century thanks to a ban on harmful chemicals, UN scientists said on Thursday.
The protective ozone layer in the earth's upper atmosphere has stopped thinning and should largely be restored by mid century thanks to a ban on harmful chemicals, UN scientists said on Thursday.
Earth Sciences
Sep 16, 2010
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Harmful chemicals that don't break down are present in public water systems nationwide, and West Virginia University economists have found that densely populated, higher-income areas and those that use groundwater tend to ...
Environment
Jul 9, 2024
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Japanese electronics giant Sony on Thursday revealed technology that generates electricity from shredded paper.
Energy & Green Tech
Dec 15, 2011
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Mammals can protect their unborn young from harmful chemicals in their blood even at the expense of their own survival odds, a study into mongooses conducted by researchers at the University of Exeter suggests.
Evolution
May 18, 2016
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221
(Phys.org) —Reports given by experts in the space-health field suggest it might take longer for humans to build a colony on Mars than has been expected. Such experts speaking to attendees at the recent "Humans 2 Mars Summit" ...
Scientists have found a new chemical process to turn a stinky, toxic gas into a clean-burning fuel.
Materials Science
Sep 9, 2021
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1012
Researchers from Washington State University and Tufts University have demonstrated for the first time that a single metal atom can act as a catalyst in converting carbon monoxide into carbon dioxide, a chemical reaction ...
Materials Science
Mar 5, 2018
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962
(PhysOrg.com) -- While current cigarettes are made with a filter created from cellulose acetate which absorbs things like nicotine, tar, and polycyclic aromatic hydrocarbons, Chinese researchers have discovered that nanomaterials ...
A polymer is a mesh of chains, which slowly break over time due to the pressure from ordinary wear and tear. When a polymer is squeezed, the pressure breaks chemical bonds and produces free radicals: ions with unpaired electrons, ...
Polymers
Mar 2, 2012
2
0
(PhysOrg.com) -- A strip of paper infused with carbon nanotubes can quickly and inexpensively detect a toxin produced by algae in drinking water. Engineers at the University of Michigan led the development of the new biosensor.
Bio & Medicine
Jan 8, 2010
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