Thus The Guardian today. “Hopes rise for global warming deal after US-China carbon commitments inject much-needed momentum into Peru talks,” elaborates the newspaper. The United Nations negotiations are intended to deliver a draft text to be adopted in Paris next year that will commit countries to reduce their greenhouse gas emissions without compromising the economic development of poor countries. The ultimate goal is to limit global warming to two degrees Celsius. Diplomats and observers of the UN climate negotiations are optimistic about the outcome of the Lima talks. There is much hope that the recent US-China deal will push other big polluters, such as India, Japan, Brazil, and Russia. Given that this year is expected to be the hottest on record, this is very good news. One of the bones of contention is the legal status of the upcoming agreement. America is pushing for a deal that would avoid legally binding targets while many developing countries insist on them. Also, a number of developing countries argue that only the industrialized countries should have to cut emissions. As one-hundred and ninety countries are represented in Lima, agreeing on a draft text for Paris will be a tall order. But why spoil the fun while it lasts? Let optimists have their day. Hooray!