Scope 3 emissions are notoriously difficult to curtail, and the average supply chain accounts for 90% of a consumer company’s impact on the environment. The key to tackling these emissions comes down to collaboration with those supply-chain participants and a laser focus on the particular factors each industry is dealing with, experts explained during Fortune’s Global Sustainability Forum last week.

“You have to really partner with those companies to enable them to set science-based targets” says Suzanne DiBianca, cofounder and chief impact officer at Salesforce. 

To do that, Salesforce held a supplier exhibit, where 40% of their suppliers signed on to meet science-based targets by 2025. The goal is to increase that percentage of participation. 

Read more on Fortune here.