Airbnb is a leading travel and booking web platform that has revolutionized the hospitality industry by offering unique accommodation options to travelers worldwide. The company was founded in 2008 by Brian Chesky, Joe Gebbia, and Nathan Blecharczyk, and since then, it has grown to become one of the most successful startups in the world. Airbnb's mission is to create a world where anyone can belong anywhere, and it has achieved this by providing a platform that connects hosts and guests from different parts of the world.

Airbnb has been at the forefront of decarbonisation efforts in the travel industry, and the company has made significant strides in reducing its carbon footprint. In 2019, Airbnb announced that it would be investing $24 million in initiatives aimed at promoting sustainable tourism and reducing the environmental impact of travel. The company has also set a goal to become carbon neutral by 2025, and it has been working towards this by implementing various sustainability measures.

One of the ways that Airbnb has been able to reduce its carbon footprint is through the use of renewable energy. The company has invested in corporate power purchase agreements (PPAs) that allow it to purchase renewable energy directly from wind and solar farms. By doing so, Airbnb has been able to reduce its reliance on fossil fuels and support the growth of renewable energy.

Airbnb has also been working to reduce its energy consumption through various energy efficiency measures. The company has implemented a range of measures, including the use of LED lighting, the installation of smart thermostats, and the use of energy-efficient appliances. These measures have not only helped to reduce the company's energy consumption but have also resulted in significant cost savings.

In addition to its efforts to reduce its carbon footprint, Airbnb has also been actively involved in promoting sustainable tourism. The company has launched a range of initiatives aimed at encouraging hosts and guests to adopt sustainable practices. For example, Airbnb has developed a sustainability toolkit that provides hosts with tips and resources on how to make their properties more sustainable. The company has also launched a program that allows hosts to offset the carbon emissions associated with their guests' stays.

Airbnb's commitment to sustainability has not gone unnoticed, and the company has received numerous awards and accolades for its efforts. In 2019, Airbnb was named one of the world's most innovative companies by Fast Company, and it was also recognized by the United Nations for its efforts to promote sustainable tourism.

In conclusion, Airbnb is a leading travel and booking web platform that has made significant strides in promoting sustainability and reducing its carbon footprint. The company's commitment to decarbonisation, corporate energy, corporate PPA, and renewable energy has set a new standard for the travel industry, and it serves as a shining example of how businesses can operate in a sustainable and responsible manner. With its continued efforts to promote sustainable tourism and reduce its environmental impact, Airbnb is poised to remain a leader in the travel industry for years to come.