Climate Change Archived Highlight Stories
Pacific Region

USFWS/Steve Hillebrand

New Milestone Energizes the Need for Action

We have recently reached a milestone that is no cause for celebration. Average CO2 levels in the atmosphere reached 400 parts per million on May 10th. The earth hasn't experienced levels this high in 3 million years, a time when average temperatures were four degrees Fahrenheit warmer and the sea level was high enough to flood land inhabited by over 25% of the U.S. population and maybe more. Not to mention that the CO2 milestone is doing no favors for plants and wildlife. Now more than ever we need to do all we can, on a personal level, in the workplace and in our communities to reduce carbon emissions. Check out the sources below for more information and ideas for how you can help.

Learn more about what you can do to reduce your carbon emissions
Read more about reaching the 400 ppm milestone from NOAA
Learn about some of the implications of 400 ppm of CO2 in this National Geographic article
Read about how early climate mitigation could save over half of the worlds plants and animals from major declines

Published on: Tuesday, May 14, 2013

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