Last updated: November 1, 2019

Welcome to Sigma Academy! Please read the following terms and conditions (collectively, “Terms of Service”) before using the services provided by Sigma Academy through its official website at http(s):// Note that the terms of “we”, “our”, “us”, and the “Academy” all refer to Sigma Academy, while the terms of “you” and “your” refer to the customer. By accessing or using our Services, you agree to be bound all of the terms and conditions described in these Terms of Service.


Sigma Academy is a non-profit organization dedicated to the advancement of knowledge and technology in climate change mitigation and adaptation. We work with thousands of scientists, engineers, stakeholders, and policymakers all over the world to promote the development of scientifically-informed decisions and dissemination of evidence-based practices for building sustainable and resilient communities. Our services include: (1) hosting conferences to promote the exchange of information, knowledge, and engineering practices for tackling climate change; (2) producing publications to help disseminate recent advances in science, technologies, solutions, policies, and case studies towards climate change mitigation and adaptation; (3) developing reliable climate data and computer tools in support of informed decision-making against climate change; (4) providing professional trainings to raise the public awareness of climate change and increase the willingness to take active actions to mitigate and adapt to climate change; and (5) offering consultations on climate change impact assessment, mitigation, and adaptation. These services can collectively help us implement our ambitious mission which is to advocate and promote evidence-based decisions, scientific-based actions, and engineering-based solutions to protect our Earth from climate change. Some of the services will be offered free of charge, while others will cost a huge amount of resources and efforts. We therefore will charge several types of fees, including but not limited to membership fees, publication fees, registration fees, training fees, and consultation fees, to enable us to offer the best services to deal with climate change.

Account and Membership

In order to access and use our services, you will need to create an online account. When creating an account, you may be required to provide certain personal information about yourself and will establish a username and a password. You agree to provide accurate, current and complete information about your account. This account will only allow you to use our free services. For those fee-based services, you will need to join as a member and pay your annual membership fee (non-refundable). Your membership will be deactivated if the membership fee is not paid after a certain period of time. You should contact us to activate your membership in order to use our fee-based services.


Violation of these Terms of Service may result in the immediate suspension or termination of your account and membership. We may investigate conduct that violates these Terms of Service and provide information to law enforcement personnel or to third parties who claim to have been harmed by such conduct. You are responsible for activities that occur under your account. If you breach any of these Terms of Service, we have the right to suspend or disable your access to or use of the Services.


Your use of our services is at your sole risk. Our services are provided "as is" and "as available". We disclaim all warranties of any kind. We are not liable for damages, direct or consequential, resulting from your use of our services, and you agree to defend, indemnify and hold us harmless from any claims, losses, liability costs and expenses arising from your violation of any third-party's rights. You acknowledge that you have only a limited, non-exclusive, nontransferable license to use our services. Because our services are not error or bug free, you agree that you will use it carefully and avoid using it ways which might result in any loss of your or any third party's property or information.


We reserve the right to update our services and these Terms of Service from time to time, at our discretion and without notice. This document is public on our website. Your continued use of our services following the publishing of updated Terms of Service means that you accept and agree to the changes.