Today is World Usability Day 2008, and this year’s theme is transportation.  As part of the day’s events, the Usability Professionals Association (UPA) has announced the Global Transport Challenge, which includes a little web-based carbon calculator.

It’s an easy way for you to understand how you use transportation everyday and the impact it has on our environment.

You will be able to:

• MEASURE your everyday transportation usage
• MONITOR your  personal carbon travel footprint and compare yourself to othersaround the world
• MINIMIZE your energy usage through alternative transportation choices, carbon offsets, and simple travel changes  thereby maximizing the impact on our world.

Today there are World Usability Day events in over 40 countries, many will be webcast,  and some will take place online only.   World Usability Day is a UPA initiative to

provide a single worldwide day of events around the world that brings together communities of professional, industrial, educational, citizen and governmental groups for our common objective: to ensure that technology helps people live to their full potential and helps create a better world for all citizens everywhere. [Link]