AI Insight
Researchers analyzing over 20 years of U.S. health data have discovered that human blood bicarbonate levels have increased approximately 7% since 1999, while calcium and phosphorus levels have decreased. These physiological changes correlate directly with rising atmospheric carbon dioxide concentrations, suggesting that increasing CO2 in the environment may be causing measurable biochemical alterations in human blood chemistry.
Why it matters
This finding suggests that climate change may be affecting human physiology in previously unrecognized ways beyond temperature-related effects. Understanding these biochemical shifts could have implications for public health monitoring and may reveal additional physiological impacts of rising atmospheric CO2 that warrant further investigation.
Understand the Science
Rising carbon dioxide in the atmosphere may be leaving a measurable imprint inside the human body. Researchers analyzing more than two decades of U.S. health data found that blood bicarbonate levels have climbed about 7% since 1999, while calcium and phosphorus have declined—changes that closely track increasing atmospheric CO2.
Source: Scientists detect a surprising shift in human blood as CO2 rises