Peace out, BREW. Only FCC-approved devices will be taken in for testing, and there's a fee for certification, but in return manufacturers are promised a four-week turnaround (eight weeks for the "best practices" cert), with mandatory re-testing every 36 months.

ENGADGET: Verizon opens up about "Any Apps, Any Device" Mobile

Saunders suggests Green Seal, a US-based non-profit that evaluates hotels, among other products, for a fee, and grants a bronze, silver or gold certification based on general sustainability.

BBC: Can hotels be truly carbon neutral?