California's former governor-turned climate action campaigner Arnold Schwarzenegger and Paris Mayor Anne Hidalgo reunited in the French capital to give an update on their local action climate plan, with Schwarzenegger promising to "pick up the slack" after US President Donald Trump dropped out of the Paris Agreement.
Schwarzenegger and Hidalgo signed their own climate agreement in April, uniting the efforts of the two organizations they chair against the climate change.
Hidalgo, the president of the C40 Cities Climate Leadership Group that connects 90 of the world's mega cities, and Schwarzenegger, the founder of the Regions of Climate Action NGO, a coalition of sub-national governments, private, state-run and charitable institutions, committed to encouraging, among other things, actions that reduces greenhouse gas emissions.