Deals to reduce greenhouse gases (such as 1997's Kyoto Protocol) have been in place for years. However, they've typically limited the reductions to richer nations -- poorer countries have objected to previous attempts to broaden the scope due to requirements they see as burdensome. At last, though, a truly global deal is underway. A total of 194 United Nations member states have agreed to submit plans for emissions cuts, with those who are ready delivering their plans no later than March. The terms have countries setting emissions targets beyond their "current undertaking," and wealthier countries will support less fortunate counterparts that are "vulnerable" to financial losses stemming from climate change. Should everything go according to plan, the UN will have a full-fledged pact within a year.