Jenna Ladd | November 20, 2017
This week’s On The Radio segment discusses how carbon dioxide levels soared to record highs in 2016.
Transcript: Carbon dioxide (CO2) levels rose to a record-high during 2016 according to the World Meteorological Organization.
This is the Iowa Environmental Focus.
The organization measures carbon dioxide and other greenhouse gases at 51 sites around the globe. Average accumulated CO2 levels in Earth’s atmosphere reached 403.3 parts per million last year due to human activity and an El Niño weather event, which brought drought to much of the world’s CO2-capturing vegetation. Last year’s increase of CO2 was 50 percent higher than average year-to-year increases over the last ten years.
Scientists say that Earth has not had the same concentrations of CO2 in the atmosphere since about three to five million years ago, when temperatures were two to three degrees Celsius warmer and sea levels were several dozen feet higher.
World Meteorological Organization scientists warn that greenhouse gas emissions should be cut drastically and immediately to avoid “dangerous temperature increases” by the end of the century.
For more information, visit Iowa-environmental-focus-dot-org.
From the UI Center for Global and Regional Environmental Research, I’m Betsy Stone.