designed for use by business but does not assume it will necessarily suit everybody. So it provides bespoke calculators designed for individual companies who think they need more sophisticated help.

There is a greenhouse gas event calculator devised by Climate Neutral (www.climatecalculator.org). It is limited to the US, offers CO2 emissions calculations, and is concerned with the amount of carbon your guests will generate by travelling to an event you are holding.

BT British Telecom is one of the world’s leading providers of communications solutions and services, servicing around 18 million customers in 170 countries in Europe, the Americas and Asia-Pacifi c. BT employs over 106000 people worldwide. It set its fi rst carbon reduction target in 1992 and has already reduced its own UK CO2 emissions by 60 per cent on 1996
levels. In 2007, BT developed a new strategy to further reduce its CO2 emissions to 80 per cent below 1996 levels. The climate change strategy has four elements, and sets out how BT will reduce its footprint; influence its customers; infl uence its suppliers; and engage its employees. Using one of the UK’s largest computer-based monitoring and targeting systems, it collects data at half-hour intervals from more than 6000 sites. This has helped the company identify wasted energy earlier than by relying on a monthly bill. BT reports its emissions according to the inventory guidelines in the Greenhouse Gas Protocol.

CITIES
Up to now cities that wanted to calculate their GHG emissions either folowed their own path or adopted an inventory tool designed for business. ICLEI-Local Governments for Sustainability has now released a draft International Local Government Greenhouse Gas Protocol with two parts: the Emissions Analysis Protocol provides guidance on making an inventory of greenhouse gas emissions and reporting them, and the Measures Analysis Protocol provides guidance on quantifying the emission reduction benefi ts
of mitigation policies and projects. The Protocol goes hand-in-hand with an on-line software tool to plan, monitor and report on GHG emissions and to be released towards the end of 2008 for use by local governments around the globe. www.iclei.org/ghgprotocol.

THE CYCLE – COUNT AND ANALYSE KICK THE HABIT 71