To preserve our planet, scientists tell us we must reduce the amount of CO2 in the atmosphere from its current level of 392 parts per million ("ppm")to below 350 ppm. But 350 is more than a number—it's a symbol of where we need to head as a planet.
At 350.org, we're building a global grassroots movement to solve the climate crisis and push for policies that will put the world on track to get to 350 ppm.
A simple message from an Australian family to the international negotiators in Poznan, Poland: We want a global treaty to bring atmospheric CO2 below 350ppm.
Jules D’Amico, Marieke Perchik, Fiona Hensley, Liz Benvin, and Lauren Quintrell worked together on The Three Hundred and Fifty Project to bring awareness to the campus and surrounding community of c
The students at Martonvasar Children's and Student's Home in Martonvasar, Hungary, make a beautiful photo of 350 out of 'found art.' Recycling for a cause!
Bromley Woodcraft Folk created pictures of nature created by 350 pieces of nature which they had seen in the woods around Cudham Environmental Centre in Kent.
Nuestro objetivo es hacer conciencia en la gente, aportandoles la iniciativa y las ideas que nos lleven a la acción, para que así, cada uno aporte un grano de arena por el mantenimiento sostenible d
Scientists say that 350 parts per million CO2 in the atmosphere is the safe limit for humanity. Learn more about 350—what it means, where it came from, and how to get there. Read More »
Climate Movement Success Stories
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