Compliant with the GHG Protocol and built around the first set of third-party-certified open source carbon models, this “science as a service” is provided at no cost to non-profit organizations as a service to the community. With a novel approach to deep transparency and a focus on resilience, [Carbon Middleware](http://brighterplanet.com/tour) makes GHG Protocol-based emission estimates available, auditable, and, affordable. As the GHG accounting software market continues to grow rapidly, we encourage other software providers to get in touch and share how they are using GHG Protocol tools and standards within their platforms. Please contact us by filling in the [online form](node/143) on the GHG Protocol website.