Global warming is making the oceans more acidic. A new electrochemical approach could reduce this acidity and remove carbon from the atmosphere in the process.
Wearing a mask to prevent infected particles from reaching the environment is basic pollution management, experts say. And science and epidemiology show masks protect individuals.
Researchers tested well-fitting cloth masks made from 16 kinds of cotton on human participants, to see how many provided filtration comparable with a certified medical mask. Most of them did.
McMaster logo
McMaster logo
