exists to inform people about the Climate Emergency and the need to reduce
atmospheric carbon dioxide (CO2 ) concentration to a safe and
sustainable level of about 300 ppm.
The fundamental position of 300.org is that “There must be a safe and sustainable existence for all peoples and all species on our warming-threatened Planet and this requires a rapid reduction of atmospheric carbon dioxide concentration to about 300 parts per million”.300.org urges the World to reduce atmospheric carbon dioxide concentration (CO2) to about 300 parts per million by volume (ppmv or ppm for short). In urging a target of an atmospheric CO2 concentration of 300 ppm, 300.org is informed by the advice of top world climate scientists as set out in carefully researched and documented presentations on this site (see Sitemap).