You can also sign their equality charter.
The Equality Charter
In the light of a growing body of evidence, we, the undersigned, believe that:
* current levels of inequality are unfair and socially damaging
* greater equality leads to happier, more cohesive, healthier and safer societies
* greater equality is an essential part of sustainable societies and of the fight against global warming
* greater equality is achievable
We therefore call upon all people, governments, politicians, and policy makers at all levels, to promote policies to create a fairer distribution of income and wealth and to narrow the gap between rich and poor.