A senior negotiator informed Reuters that China is open to including its voluntary carbon emissions target in a mandatory UN resolution. This move could potentially push developed countries to prolong the Kyoto Protocol. The success of UN climate talks in Cancun depends on reaching an agreement on solidifying national emissions targets post-2012. China's willingness to compromise is contingent on the United States committing to mandatory emissions reductions and extending the Kyoto Protocol. Developing countries are in favor of continuing the protocol, while industrialized supporters like Japan, Russia, and Canada prefer a separate agreement that encompasses all nations. China had previously resisted the idea of making its domestic emissions targets mandatory, as is currently the case for industrialized nations. Huang Huikang, the Chinese Foreign Ministry's representative for climate change negotiations, stated that a resolution can be established that would be enforceable on China. He also mentioned the possibility of a legally binding decision under the UN Climate Convention and expressed willingness to discuss the details. Huang Huikang emphasized the importance of China's efforts aligning with international actions and argued against the idea of abandoning the Kyoto Protocol to address climate change concerns. Jennifer Morgan from the Washington-based World Resources Institute described the proposal as a "gamechanger," noting that it was a positive step towards reaching an agreement in Cancun. Alden Meyer from the US-based Union of Concerned Scientists also viewed the proposal as a promising development, while acknowledging that the details would be crucial. China's chief negotiator Xie Zhenhua later stated that China's targets could be aligned with the Convention, allowing developing countries to voluntarily make emissions commitments using their own resources. Huang stated that China would not change its stance on insisting that new emissions targets be included in an extended Kyoto agreement. China has always maintained that its efforts to reduce emissions are binding domestically and not subject to international agreements. Huang acknowledged that China is now open to linking its efforts internationally as part of a compromise. China is willing to play a positive role in the international effort, but remains firm that there is no room for compromise on the issue of Kyoto. Developing countries, such as China, the largest carbon emitter in the world, made a commitment at a summit in Copenhagen the previous year to voluntarily take measures to limit the increase of their emissions. China specifically promised to decrease its "carbon intensity," the quantity of carbon dioxide (CO2) emitted for every dollar of economic growth. The goal is to lower this by 40-45 percent by 2020 compared to levels in 2005. Huang suggested that this intensity target could be included in a resolution.