"China is firmly committed to the denuclearization of the Korean peninsula and to peace and stability on the Korean peninsula. We maintain that we should address the Korean peninsula issue through dialogue and negotiations. Relevant parties should have active contacts and dialogue so as to create conditions for the re-launch of the six-party talks." The two leaders also agreed to cap greenhouse gas emissions. China,... now the world′s biggest polluter,... says it will aim for a peak in its carbon emissions by the year 2030,... marking the first time China has presented a specific commitment on the issue. The U.S. pledged to cut total emissions by 28 percent by the year 2025. Combined, it′s estimated that both countries emit about 45 percent of the world′s carbon emissions.