Our ability to protect and preserve our planet for future generations is critical. We believe it is our collective responsibility to be mindful of our use of natural resources and take actions that promote sustainability and mitigate the impacts of climate change. As we continue on our environmental sustainability journey, our approach to climate-related risks and opportunity is described in alignment with the core elements of the disclosure framework articulated by the Task Force on Climate-Related Financial Disclosures (TCFD): governance, strategy, risk management, and metrics and targets.
To manage environmental risks and opportunities, Huron's Nominating and Corporate Governance Committee provides oversight of the company's corporate social responsibility strategy, including sustainability. In addition, our Enterprise Risk Management Committee is responsible for assessing environmental and sustainability-related risks associated with our business and reports regularly to the Audit Committee on risk-related issues.
Our environmental sustainability strategy focuses on areas where we can make a meaningful impact and align with business risks. As a professional services firm, we do not manufacture or distribute products or generate hazardous waste. Our offices do not have a high demand for water use given our business operations and, therefore, we do not have water recycling programs in place. We recognize that normal office use and business travel impact carbon emissions; however, we have shown that we can grow the business and deliver great work for our clients while reducing our office space and business travel. Since 2020, our revenues have grown at a 15.8% compound annual growth rate (CAGR) and we have increased our employee population by more than 50%, while at the same time reducing our office footprint and level of travel that historically has been required. We are leveraging more flexible working models to alleviate Scope 3 emissions, which are emissions that result from activities related to our business but are not directly under our control. We are also focused on opportunities to reduce our waste and energy consumption in our local offices, including transitioning to renewable energy where possible. We use a certified third-party company to manage our electronic waste program, ensuring computers and other information technology (IT) hardware that are no longer useful are repurposed or disposed of in an ethically and environmentally responsible manner. Since 2018, we have diverted more than 42,000 pounds of electronic waste from the landfill.
We are also helping our clients make strides in sustainability. In 2022, Huron’s team worked with one of the largest energy infrastructure companies in the United States to modernize its business processes by implementing Oracle Cloud ERP and our energy application toolkit. This will help the organization meet its goal of reducing greenhouse gas emissions by 56% by 2030. By updating its processes and leveraging our specialized toolkit, the company was able to improve efficiency and reduce its environmental impact.
With a passionate and highly engaged workforce, our employees are another component of our sustainability strategy. As part of our commitment to climate action (SDG 13), we have created opportunities to improve education and raise awareness among our employees on climate change mitigation, adaptation, impact reduction, and early warning. In November, we held our third annual sustainability challenge as part of our ongoing efforts to make sustainable switches, build greener habits, and educate ourselves on environmental impacts. The Huron Chooses Green Challenge had two missions: "Take Action on Your Own," focused on personal actions, and "Take Action With the Sustainability Network," centered around engaging with colleagues through live events hosted by Huron’s Sustainability Network. Nearly 70 employees participated in the two-week event, completing 350 activities, such as making sustainable switches, reading and watching educational content, and hosting World Cleanup Day events. As a result of these efforts, individuals saved a total of 17,000 pounds of waste and 4,200 pounds of carbon dioxide. In addition to the Huron Chooses Green Challenge, we also offered a series of lunch and learn events focused on topics such as solar panels, fast fashion, and environmental justice.
We recognize the importance of considering climate risk from physical, regulatory, and operational perspectives. Our Enterprise Risk Management Committee reviews and assesses these risks on a regular basis. As Huron is a professional services organization, climate change has limited direct impact on our day-to-day operations compared with other industries. However, we acknowledge the potential for business disruption caused by extreme weather events in several of the cities where we operate. Natural disasters such as flooding, wildfires, or power-supply disruptions could impact our employees' ability to work from our offices or travel to client sites. The COVID-19 pandemic and the hybrid work environment that has continued since then has shown us that our IT infrastructure and systems enable our team to work effectively remotely and serve our clients with reduced travel when necessary. We have also managed the risk of a natural disaster affecting the safety of our employees, including those traveling for work, through our partnership with International SOS. This allows us to track business travel and account for our employees in times of crisis through integration with our approved travel management companies. For more information on how we keep our employees safe from climate and other risks when traveling for Huron business, please see our Health and Safety Policy. Our legal and compliance teams stay informed of new and changing laws and regulations that apply to our business, including if applicable environmental laws were passed in the countries where we operate. In that event, we would work with our business and functional leaders to implement any necessary changes to our compliance programs or operations.
In 2022, we continued our efforts to track our greenhouse gas (GHG) emissions data, working with AccountAbility, a third-party global consultancy firm. While we made progress in our data collection processes, we still continue to rely on activity data estimations for the calculations on the following page. As business operations began to normalize after the disruption of the COVID-19 pandemic, we had anticipated an increase in our GHG emissions in 2022. While we saw an uptick in our Scope 3 emissions due to increased business travel, as our data reflects, we continue to experience an overall reduction in our GHG emissions from our 2019 baseline.
The climate crisis is a pressing issue, and we recognize the importance of addressing it now in order to secure a healthy future. To that end, in 2023, we will be establishing carbon-reduction targets, with the goal of continuing our progress on reducing emissions and doing our part to protect our planet. We will update our Environmental Responsibility Policy later this year with our targets and additional updates on our sustainability efforts throughout the year.
The GHG emissions in this chart cover only the emissions-producing activities listed and are estimated using the methods, emissions factors, and assumptions detailed in in our GHG Emissions Calculations Methodology. They are not exhaustive of all of Huron's GHG emissions-producing activities.
tC02e is metric tons in carbon dioxide equivalent. Total employees include full-time employees as of Dec. 31 of the respective year.
For more details on the methodology for these environmental impact calculations, please refer to Huron's GHG Emissions Calculations Methodology in the Appendix.