Abstract: For the first time in its history, the World Meteorological Organization has addressed the UN Security Council on the risks to international peace and security posed by climate change and climate-related disasters. Previous UN Security Council debates on the topic of climate change are analyzed. The comparison shows that the statement of WMO made a vital contribution to the dissection and inspection of climate change issues from a scientific perspective, and the role which WMO played is irreplaceable within the UN system.