Environmental and sustainability efforts are helping companies contain costs, according to Treasury & Risk’s third annual Going Green survey, sponsored again this year by J.P. Morgan. Of the more than 200 finance executives who responded to this year’s survey, 88% say their company realizes cost savings from green efforts, up from 83% in 2011 and 79% in 2010. A little more than half (53%) say their company is saving up to 5% of its overall costs, while 23% put the savings at 5% to 10%. Half of the executives say their company has a formal environmental policy or a sustainability program, vs. 52% in 2011, while 44% say environmental strategies are integrated with the company’s business plan, up from 39% last year. Just 28% say their company has assessed its carbon footprint, unchanged from last year.