Bicycology

Here's some guys making an effort to make a difference:

"Bicycology is a cyclists' collective that offers a range of activities to promote cycling and make the links with wider issues of environmental and social responsibility.
We use our passion for cycling to pursue our vision of a just and sustainable world through a combination of education, entertainment and creative direct action.
Bicycology was formed by riders who wanted to build on their shared experience of the 2005 G8 Bike Ride and organise future events of a similar nature. Bicycology is an independent, non-hierarchical group run directly by all its members through regular meetings that rotate around the country. Bicycology is funded by donations, fees and occasional grants."

Read more about their varied activities here.