The financial crisis today also exposes irrationalities in realms beyond finance. One example is U.S. President Barack Obamas call for trading in carbon credits as a solution to the climate crisis. In that supposedly progressive proposal, corporations that meet emissions standards sell credits to others that fail to meet their own targets. The Kyoto Protocol called for a similar system swapped across states. Fatefully however, both plans depend on the same volatile derivatives markets that are inherently open to manipulation and credit crashes. Marx would insist that, to find solutions to global problems such as climate change, we need to break with the logic of capitalist markets rather than use state institutions to reinforce them. Likewise, he would call for international economic solidarity rather than competition among states. As he put it in the Manifesto, " United action, of the leading... countries, at least, is the first condition for the emancipation of the proletariat. "Yet the work of building new institutions and movements for change must begin at home. Although he made the call "Workers of the world, unite！" Marx still insisted that workers in each country "first of all settle things with their own bourgeoisie. " The measures required to transform existing economic, political, and legal institutions would " of course be different in different countries. " But in every case, Marx would insist that the way to bring about radical change is first to get people to think ambitiously again.