FY21 ESG Disclosures July 2022 Unaudited 9 Metric FY19 [a, b] (Baseline) (Metric tonnes CO2e) FY21 [a, c] (Metric tonnes CO2e) % Change Scope 2 (Location-based) 56,226 44,730 -20% Electricity 49,287 39,831 -19% Purchased Heating 6,939 4,900 -29% Scope 2 (Market-based) 53,289 4,900 -91% Electricity 46,351 0 -100% Purchased Heating 6,939 4,900 -29% Scope 3 (Business Travel) 107,968 26,459 -75% Total (Location-based) Scope 1 + Scope 2 (Location-based) + Scope 3 (Business Travel) 184,733 87,939 -52% Total (Market-based) Scope 1 + Scope 2 (Market-based) + Scope 3 (Business Travel) 181,796 48,108 -74% Offsets Purchased 0 48,108 100% Total Net with Offsets 181,796 0 -100% [a] All values have been third-party verified, with limited assurance. [b] Includes full year of KeyW (acquired June 2019) and Wood Nuclear Group (acquired March 2020) and does not include the Energy, Chemicals and Resources (ECR) LOB divested in April 2019 [c] Includes full year of The Buffalo Group (acquired November 2020) Note: Target base year annual emissions have been adjusted to include acquisitions per the GHG protocol standard. The total emissions reported represent 100% of Jacobs' global operations. Scope 1 emissions include stationary combustion emissions and refrigerant emissions associated with owned office locations and mobile combustion emissions associated with owned and long-term leased fleet vehicles. In FY21, we achieved an 18% absolute reduction in our total scope 1 direct emissions compared to FY19, prior to applying offsets. Much of those emissions were likely reduced due to fleet vehicle travel restrictions caused by the COVID-19 pandemic and we aim to reinforce reduced travel moving forward across the business. We are implementing plans to reduce fleet vehicle emissions by replacing older less fuel-efficient vehicles and purchasing more electric or hybrid vehicles. Our North American fleet is our largest fleet and largest source of scope 1 emissions. Our North American fleet manager has committed to obtaining 20% electric vehicles (approximately 400 vehicles) by 2030 or sooner. As part of our tiered approach, we have also started to put telematics in our new vehicles, allowing us to obtain vehicle diagnostics, including mileage, without manual intervention. Telematics also allows us to be safer on the road by proactively addressing driver behavior including idling, harsh braking and speeding, which have a negative impact on fuel economy. For model year 2022, all new vehicles will have telematics. We successfully piloted this in 2021 for approximately 50 vehicles with great employee and client feedback. We measure our scope 2 indirect purchased electricity GHG emissions according to both the location- based method and market-based method. Scope 2 emissions include purchased heating for leased office locations and purchased electricity for 100% of our global operations. In FY21, we achieved a 20% absolute reduction in our total scope 2 location-based emissions compared to FY19 baseline, prior to applying green power purchases and carbon offsets. After applying our green power purchases, we achieved a 91% reduction in our scope 2 market-based emissions for FY21 compared to FY19 baseline. Most of our office space is leased, and we therefore have limited information and control over office space energy consumption. To date, emissions have been primarily reduced through consolidation of office