American Tower Corporation is a leading real estate investment trust (REIT) in the infrastructure sector. The company is headquartered in Boston, Massachusetts, and operates globally, with over 180,000 communications sites in more than 20 countries. American Tower Corporation specializes in owning, operating, and developing multi-tenant communications real estate, including wireless infrastructure, broadcast towers, and data centers.

As a large and growing infrastructure REIT, American Tower Corporation is committed to sustainability and decarbonization. The company recognizes the importance of reducing its carbon footprint and contributing to the global effort to combat climate change. To this end, American Tower Corporation has set ambitious sustainability goals, including reducing its greenhouse gas emissions by 30% by 2030 and achieving net-zero emissions by 2050.

One of the ways American Tower Corporation is working towards decarbonization is by investing in renewable energy. The company is committed to sourcing 100% of its electricity from renewable sources by 2030, and it has already made significant progress towards this goal. In 2020, American Tower Corporation sourced 65% of its electricity from renewable sources, up from 37% in 2018. The company is also exploring opportunities to generate renewable energy on its own properties, such as installing solar panels on rooftops and parking lots.

In addition to investing in renewable energy, American Tower Corporation is also focused on reducing its overall energy consumption. The company has implemented a number of energy efficiency measures across its portfolio, such as upgrading lighting systems, installing energy-efficient HVAC systems, and optimizing cooling systems in data centers. These measures not only reduce the company's carbon footprint but also help to lower operating costs and improve the resiliency of its infrastructure.

To further support its sustainability goals, American Tower Corporation has also entered into corporate power purchase agreements (PPAs) for renewable energy. PPAs allow companies to purchase renewable energy directly from a generator, often at a lower cost than traditional electricity sources. American Tower Corporation has entered into several PPAs for wind and solar power, which will help the company to achieve its goal of sourcing 100% of its electricity from renewable sources.

Corporate energy management is another key area of focus for American Tower Corporation. The company has implemented a comprehensive energy management program to track and manage its energy use across its global portfolio. This program includes regular energy audits, energy benchmarking, and the use of advanced energy management software to identify and prioritize energy-saving opportunities. By managing its energy use more effectively, American Tower Corporation is able to reduce its carbon footprint and improve the efficiency of its operations.

Overall, American Tower Corporation is a leader in the infrastructure REIT sector when it comes to sustainability and decarbonization. The company's commitment to renewable energy, energy efficiency, and corporate energy management is helping to drive down its carbon footprint and contribute to the global effort to combat climate change. As the world continues to transition to a low-carbon economy, American Tower Corporation is well-positioned to thrive and continue to provide critical infrastructure services to its customers.