The William and Flora Hewlett Foundation in Menlo Park, California, has announced a five-year, $600 million commitment in support of nonprofits working to address climate change. The pledge was announced on the eve of French president Emmanuel Macron's convening of global government, business, and philanthropic sector leaders to discuss private and public financing for global efforts to implement the Paris climate change agreement. The foundation is participating in the conference and plans to engage in other efforts to boost charitable funding for climate change solutions.