Free Republic

We've spent over a year debating nonexistent evidence that masks effectively protect against the spread of viruses. However, there has been little debate and few published studies on potential harms of mask-wearing, a reality that has allowed zealous maskers to aggressively push their mandate as harmless, with no downside. Well, now we have a randomized controlled trial published in JAMA that raises serious concerns about this practice. Researchers from Germany conducted a blinded randomized controlled trial of 45 children wearing masks and measured the baseline carbon dioxide levels during inhalation and exhalation behind various masks as compared to the levels...

Carbon dioxide, the gas largely blamed for global warming, has reached record-high levels in the atmosphere after growing at an accelerated pace in the past year, say scientists monitoring the sky from this 2-mile-high station atop a Hawaiian volcano. Carbon dioxide, mostly from burning of coal, gasoline and other fossil fuels, traps heat that otherwise would radiate into space. Global temperatures increased by about 1 degree Fahrenheit (0.6 degrees Celsius) during the 20th century, and international panels of scientists sponsored by world governments have concluded that most of the warming probably was due to greenhouse gases.