May 10th was an historic day in climate change history. CO2 at Mauna Loa, location of the longest unbroken records of CO2 levels, hit 400ppm. Scientist can look back up to 800,000 years, in air bubbles trapped in Antarctic ice, to determine how carbon dioxide levels have changed from 180 during the ice ages and 280 during warmer periods. Fossil fuels have caused a 41% increase in carbon since the beginning of the Industrial Revolution. What does this mean for Philadelphia? It means more extreme temperatures in the summers, with fewer moderate days. This will cause problems for farmers growing crops that rely on consistent summer temperatures. For example, you may not find lettuce and broccoli in markets past July. But there is hope! The Climate and Urban Systems Partnership is helping Philadelphians learn about and combat climate change.

Also known as CUSP, the Climate and Urban Systems Partnership is an east coast movement with established networks in Philadelphia, Pittsburgh, Queens, NY and Washington D.C. Working with local partners ( community groups, city government and policy makers) the members strive to create and disseminate learner-focused climate education programs and resources for an urban audience. CUSP hopes to create lasting collaborations to improve public understanding of the science of climate change. The Philadelphia Water Department is a proud member and supporter of CUSP! Keep an eye out for different education materials cropping up around the city, like these posters at the Clark Park Farmers’ Market.