ACCO and ISSP are two organizations and communities of practice both of whom have extensive knowledge and influence in the climate and sustainability sectors. Our communities consist of climate change and sustainability professionals share a passion for future success in their professional endeavors, their organization’s initiatives and for the rapidly expanding fields of practice.

We have gathered some of the best and brightest leaders from our respective communities to establish a planning council that will shape this important Congress. Their presence and participation at this Congress will anchor a broader group of professionals coming together to collaborate with high-level stakeholders and individuals from diverse backgrounds and multiple sectors to make meaningful progress together on advancing the fields of climate change and sustainability.


The Association of Climate Change Officers is the premier professional development organization and cross-sector community of practice. Specifically for individuals addressing climate change in their organizations’ operations and mission, an ACCO membership fosters collaboration with leading edge practitioners, policy makers, climate scientists and researchers to advance solutions and build capacity in addressing climate change.

Among many other things, one can expect a diverse community of peers which includes thought leaders and decision makers across multiple sectors and industries. Members collaborate through online training and at in-person events that cover a range of topics including climate change preparedness, supply chain management, energy strategies, organizational change, and emerging policy.

ACCO’s original and third-party research allows members to constantly be growing and participating in the latest climate change capacities while credentialing through the Certified Climate Change Professional® (CC-P®) program takes it even one step further.

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The International Society of Sustainability Professionals envisions a world where sustainability is standard practice.

Working to do this by empowering professionals to advance sustainability in organizations and communities around the globe, this professional association improves the skills of sustainability practitioners through education, knowledge sharing, research, and professional credentials.

Individuals join ISSP to be a part of a professional organization building individual and collective knowledge in the highly dynamic and constantly developing field of sustainability.  In-person and virtual member events provide networking opportunities with sustainability professionals across all industries and sectors around the globe. Organizations join ISSP to make a visible commitment to advancing global sustainability, bring their services and knowledge to ISSP members, and provide individual memberships for their staff.

Webinars, online courses, a sustainability professional certification, sustainability professional’s body of knowledge, special reports, resource directories, salary surveys and the ISSP Sustainability Professional Certification Program are just a sampling of the vast range of content offered to members.

Learn more about ISSP at