The list of businesses going "green" lengthens by the day. Household names such as Wal-Mart, Coca-Cola, General Electric, Hewlett-Packard and L'Orealboast programmes to cut their greenhouse gas emissions, use natural resources more efficiently, recycle more and clear up pollution. These initiatives have gained approval from consumers and praise from environmental groups, but what will happen if the economy slows? Will companies continue to put efforts into improving their environmental credentials? Or will these green buds wither in the chill wind blowing through the markets?