Thornberry's main interests since becoming an MP have been in health, housing, the environment and equality. She has also spoken on the need for more affordable housing, particularly in Islington. In 2006, Thornberry introduced the Housing Association Bill, a Private Member's Bill which sought to improve the control of housing association tenants over their landlords. Many of the ideas from this bill were taken up by the Cave Review. On environmental matters, Thornberry worked with Friends of the Earth and World Wide Fund for Nature (WWF) to campaign for a Climate Change Bill and a Marine Bill. In 2006, Thornberry won the ePolitix Award for Environment Champion of the Year after being nominated by WWF.