We measure our global impact through our 1 Billion People Challenge, which with the addition of projects performed in 2022, has reached 545 million people and contributed to a reduction of 101. 2 million metric tons of CO2e. Overall, this year’s report shows advancement toward our 2030 goals in 27 of the metrics we track. Our program and associated goals are aligned with our commitment to the United Nations (UN) Global Compact, UN Sustainable Development Goals (SDGs), and Science Based Targets Initiative (SBTi). Our report also includes reporting of our operational greenhouse gas (GHG) emissions that encompass Scope 1, 2, and 3 CO2e emissions. Tetra Tech’s diverse and inclusive teams support continued innovation, new ideas, and integration of skills and resources to provide career opportunities for our staff and excellent service for our clients. We track our performance against diversity goals and have continued to expand the racial and ethnic diversity of our workforce. Our company-wide employee engagement has increased 77 percent through global networking and professional development activities. Across our global community, we support financial and in-kind giving, volunteering, and community-based initiatives with a focus on science, technology, engineering, and mathematics (STEM) programs. We are committed to working throughout our projects and operations to reduce our GHG emissions and support global efforts to achieve the Paris Agreement’s 1. 5-degree Celsius target. On behalf of our Board of Directors, Tetra Tech officers, and our 27,000 employees, we reiterate our commitment to using our Leading with Science approach to produce scalable solutions that will reduce the effects of climate change and contribute to a better world.