What are the venue doing?

A summary of The Langham's policy can be found via this link:

http://www.langhamhotels.com/en/the-langham/london/overview/corporate-social-responsibility/environment/

Additionally last year The Langham were implemented the Orca food waste management system onsite.

https://www.feedtheorca.com/

The Langham have also just been awarded Platinum Earth Check status.