Science Daily reports:

Rising levels of carbon dioxide in the atmosphere may already be influencing human biology. New research has identified long-term changes in blood chemistry that appear to track rising atmospheric CO₂, raising concerns that an important blood marker could approach the upper end of its healthy range within the next several decades.

The findings may be particularly important for children and teenagers. Because their bodies are still developing, younger generations are expected to experience the greatest lifetime exposure to elevated atmospheric CO₂.

In a study published in Air Quality, Atmosphere and Health, scientists from The Kids Research Institute Australia, Curtin University and The Australian National University (ANU) examined more than 20 years of U.S. population health data. They found persistent changes in several measures of blood chemistry that closely followed the upward trend in atmospheric CO₂.

The researchers used information from the U.S. National Health and Nutrition Examination Survey (NHANES), analyzing blood test results from roughly 7,000 people at two-year intervals between 1999 and 2020. [Continue reading…]