The Co-operative Bank, a UK ethical bank, this month revealed it had joined those refusing to buy bonds issued by the World Bank's commercial arm, the International Finance Corporation (IFC), until it shows greater commitment to sustainable energy. Triodos, a Netherlands ethical bank trading in the UK, already rejects World Bank bonds of all kinds because it doubts the sustainability of the projects it finances. The Ecology Building Society, meanwhile, also steers clear of World Bank debt.