Coinciding with The United Nations Climate Summit, Climate Week NYC and the many other events that took place in New York and worldwide in September, The Huffington Post invited B Team Leaders to take part in a blog series on climate change.As world leaders met to generate momentum and announce commitments to address climate change, the month of September also saw many business leaders raise their voice, and demonstrate that a growing number of companies and business leaders are ready to lead the charge towards an equitable zero carbon economy.

Please find blog posts below from B Team Leaders Sir Richard Branson, Ngozi Okonjo-Iweala, Paul Polman and Kathy Calvin:

Richard Branson: It's Not All Doom and Gloom: What We Can Do Now for the Arctic

Ngozi Okonjo-Iweala: Africa to Issue $1 Billion in Climate Bonds

Paul Polman: Forests and Food are on the Front Line of the Battle Against Climate Change

Kathy Calvin: To End Poverty, Act On Climate

Additionally, please find a recording of The B Team panel during the opening day of Climate Week and watch the We Mean Business video as The B Team joined the world's most influential business coalitions in declaring 'We Mean Business' on climate.