The government had for several years resisted public demands for a minimum wage, and relied on a voluntary program, which ultimately failed to meet its expectations.

And they feel betrayed because what the administration once billed as a transparent, voluntary program aimed only at dangerous convicted criminals turns out to be none of those things.

We're not looking for a mechanism in which we would have an obligation to reduce emissions of a legal form and the major emerging economies would have a voluntary program, "said Pershing."