1. The Green House, Bournemouth, UK
In this 32-bed villa conversion, hot water and heating are provided by solar panels, corridors have low-energy light sensors and the flatscreen TVs use less than a quarter of the energy normally required. thegreenhousehotel.co.uk
2. Hotel Victoria, Freiburg, Germany
Near the historic old town, this four-star Best Western Premier hotel and bar is powered solely by renewable energy. Guests can also use public transport for free. hotel-victoria.de
3. Lapa Rios, Costa Rica
The 16-bungalow luxury eco lodge near Corcovado National Park on the Osa Peninsula is Costa Rica's best-known green hotel, designed to have a low impact on the environment and protect the lowland tropical rainforest in which it sits. laparios.com
4. Vil Uyana, Sri Lanka
This resort of 25 wooden villas on a private nature reserve has been built over reclaimed paddy fields and is managed by Jetwing, one of the leading sustainable tourism operators in the Indian subcontinent. jetwing.com
5. Arthur's Pass Wilderness Lodge, New Zealand
This luxury eco-lodge, which sits within 6,000 acres of land, is built out of local stone, wood and iron, and has helped protect a huge area of regenerating native forest. wildernesslodge.co.nz
Richard Hammond is the author of Clean Breaks and founder of greentraveller.co.uk.
British Airways flies to San José, Costa Rica, as part of a codeshare with American Airlines; Colombo, Sri Lanka, as part of a codeshare with Kingfisher Airlines; and Auckland, New Zealand, as part of a codeshare with Qantas or Cathay Pacific. Visit ba.com, where you can join the Executive Club and earn BA Miles.
