Rising CO2 Levels Affect Human Blood Chemistry

Topic: Environment

Scientists from Australia studied blood data of over 7,000 people and found that rising atmospheric CO2 levels are affecting human blood chemistry. This could lead to health problems in the future.

Scientists have discovered a surprising shift in human blood chemistry as atmospheric carbon dioxide (CO2) levels rise. They analyzed 20 years' worth of data from over 7,000 people in the US and found that their bodies are adjusting to the increasing CO2 levels.

The researchers looked at three key measures: serum bicarbonate, calcium, and phosphorus levels. They found that serum bicarbonate levels have increased by about 7% since 1999, while calcium and phosphorus levels have decreased. These changes occurred as atmospheric CO2 concentrations rose from around 369 parts per million (ppm) in 2000 to over 420 ppm today.

The study's authors believe that the body is trying to maintain its acid-base balance by retaining more bicarbonate. However, this could lead to health problems if it continues for a long time. They warn that average bicarbonate levels could approach the upper limit of their healthy range within 50 years, and calcium and phosphorus levels could reach the lower end of their healthy ranges later this century.

The researchers emphasize that their study does not prove a direct cause-and-effect relationship between CO2 levels and blood chemistry. However, they believe that the consistency of the changes across a large population warrants attention.

Why It Matters

This discovery is important for India because it shows how rising CO2 levels can affect human health. As India's population grows and urbanizes, it's essential to monitor and reduce CO2 emissions to prevent potential health problems.

Key Facts

• Scientists from Australia studied blood data of over 7,000 people in the US.
• Rising atmospheric CO2 levels have increased serum bicarbonate levels by about 7% since 1999.
• Calcium and phosphorus levels have decreased as atmospheric CO2 concentrations rose.
• Average bicarbonate levels could approach the upper limit of their healthy range within 50 years.
• The study's authors warn that reducing CO2 emissions is essential to prevent potential health problems.

Key Terms

Carbon dioxide (CO2)

A colorless gas in the Earth's atmosphere that traps heat and contributes to global warming

Serum bicarbonate

A chemical in blood that helps regulate acid-base balance

Implications

This discovery is important for India because it shows how rising CO2 levels can affect human health. As India's population grows and urbanizes, it's essential to monitor and reduce CO2 emissions to prevent potential health problems.