ENVIRONMENT GIGATON GOAL AT&T is helping facilitate the global transition to net zero through emissions- reducing solutions for our operations, customers, employees and communities. Reducing a gigaton of emissions We’re helping customers improve their environmental footprint by driving adoption of AT&T broadband-enabled technologies that can reduce GHG emissions, such as online collaboration tools and IoT solutions for fleet, asset and building energy management. We’re measuring this impact through a methodology developed in collaboration with Carbon Trust and BSR. In 2021, we announced the AT&T Gigaton Goal to deliver connectivity solutions that enable customers to collectively reduce a gigaton (1 billion metric tons) of GHG emissions between 2018-2035. 1 gigaton is approximately equal to 15% of 2020 U.S. GHG emissions, nearly 3% of 2020 global energy-related emissions or 1.6 billion flights from Los Angeles to New York. 21 Our gigaton goal recognizes that connectivity has a role in helping our customers mitigate climate change, at scale. AT&T-enabled customer GHG emissions reductions measured between 2018–2021 total 110.3 million metric tons of CO 2 e – approximately 11% attainment toward our gigaton goal. 22 AT&T Connected Climate Initiative As part of our efforts to achieve our gigaton goal, in 2021 we formed the Connected Climate Initiative (CCI) to convene the brightest minds from leading technology companies, AT&T Business customers, universities and non-profits. We’re working to identify best practices, develop new products and use cases, and scale the innovations of startup partners building 5G- and other broadband-enabled climate solutions. We’re making impact on a global scale by collaborating with businesses such as Microsoft, Equinix and Duke Energy. In addition, we’re leveraging innovation from research universities including Texas A&M University, the University of Missouri and Purdue University. And we’re actively exploring partnerships with others, as well. Internally, we’ve formed a “tiger team” with representatives from our CSR and AT&T Business organizations that meets regularly to build AT&T sales team expertise and customer engagement on climate-related issues, recruit new CCI partners and identify opportunities to increase AT&T revenue. In 2022, we launched a training course available to all employees, introducing CCI and explaining how AT&T can help customers address climate change. Read more: Climate Change Issue Brief • Gigaton Goal website Read more: Climate Change Issue Brief • Gigaton Goal website “AT&T has a track record of delivering sustainability results within our own large-scale operations and for our business customers across industries.” – Anne Chow, CEO, AT&T Business Gigaton Goal Progress: Gigaton Goal (1 billion metric tons of GHG emissions between 2018-2035) 110.3 million 0 1 billion OVERVIEW AT&T AND SHAREHOLDERS CUSTOMERS AND COMMUNITIES EMPLOYEES SUPPLIERS ENVIRONMENT GOVERNANCE GOALS SUMMARY AT&T Sustainability Professional Services AT&T has significant experience leveraging connectivity to reduce the environmental impact of operations – for ourselves and our customers. We’ve learned our solutions have the greatest impact when supported by the right expertise. In 2022, our professional services consulting group launched a Sustainability Professional Services team to help customers review their environmental impact and identify improvements for operational efficiency and emissions reduction. We’re also working with customers to develop climate adaptation and resilience strategies, leveraging projected climate-impact data from CCAT (page 9). Collaboration Collaborating with technology leaders to bring to market new scaled product offerings that enable business progression and emissions reduction. Solutions Delivering connectivity-driven solutions to help our AT&T Business customers reduce emissions. Research Investing in research with leading universities to explore how 5G can enable emissions reductions in key areas like transportation, energy and manufacturing. Distribution Fueling innovation and disruptive technologies that use connectivity to fundamentally change how work gets done. Traxen iQ-Cruise ™ Traxen iQ-Cruise is an AI-informed adaptive cruise control solution that delivers an average 10% increase in fuel efficiency, in addition to improved safety and driver satisfaction. Using AT&T IoT connectivity, Traxen collects topography, traffic and end-of-route congestion data to help drivers operate their vehicle’s engine and transmission at a highly efficient rate. Badger Meter Badger Meter, a provider of smart water solutions including flow measurement and water quality devices, utilizes AT&T IoT connectivity to help customers collect near real- time data to drive efficiency, reduce costs and enable conservation throughout their water distribution networks. By helping identify water leaks quickly, avoiding trips to read or power meters on or off, and arming households with water usage data, Badger Meter helps reduce wasted water and related emissions. SunPower ® SunPower, a U.S.-based solar technology and energy services provider, uses AT&T IoT connectivity to optimize the production of renewable energy and enhance operational efficiencies. SunPower works with AT&T to help monitor solar panels and battery storage, giving solar customers greater visibility into system performance and more control over how and when they use stored energy. Connected Climate Initiative Focus Areas KPI s AT&T ESG SUMMARY REPORT 2022 AT&T ESG SUMMARY REPORT 2022 32 33