Read the Impact at Work toolkit from Net Impact. It has great ideas for green teams, step-by-step worksheets and much more.
Encourage your company to sign up for the Green Lights and Energy Star energy-saving programs offered by the U.S. Environmental Protection Agency. Contact EnergyStar at 888.STAR.YES (888.782.7937) or visit their website.
Assemble a team of co-workers to conduct an energy audit at your workplace. Look for lights and equipment needlessly left on, drafty windows and doors you could insulate, inefficient thermostat settings, and other energy-wasters. Make recommendations for improvements that will save energy and money. Or take it a step further and...
...Host an EDF Climate Corps Fellow. Over the course of 10 to 12 weeks, fellows develop actionable plans that accelerate companies energy management programs. Sign up to host a fellow here.
Put up an Earth Day bulletin board during April that offers employees new energy-saving tips each week. Check out websites like EarthShare, Energy Star or Sierra Club for great green tips.