共筑气候安全 携手应对风浪（环球热点）

Core Viewpoint - The rising sea levels due to climate change are posing significant threats to coastal communities and ecosystems, necessitating urgent international cooperation and resource allocation to mitigate impacts and adapt to changes [2][9]. Group 1: Climate Change and Sea Level Rise - The World Meteorological Organization reports unprecedented sea level rise, with global sea levels increasing approximately 100 millimeters from 1993 to 2024 [3]. - China's coastal sea level is projected to be 96 millimeters higher than the historical average in 2024 due to climate change [3]. - A study indicates that even if global temperatures stabilize, nearly 40% of glacier mass is already lost, potentially leading to an additional 113 millimeters of sea level rise [3]. Group 2: Impact on Vulnerable Regions - Tuvalu, with an average elevation of only 2 meters, faces existential threats from rising sea levels, with most land and infrastructure expected to be below high tide by 2050 [6]. - Coastal cities like Alexandria in Egypt and Atafona in Brazil are experiencing severe erosion and flooding, with significant infrastructure at risk [6]. - The World Bank predicts that by 2050, there could be 216 million climate migrants globally, with cities like Dhaka and Bogotá expected to absorb millions of these migrants [7]. Group 3: Economic and Social Consequences - Rising sea levels are exacerbating coastal storm surges, damaging ecosystems, and threatening agriculture, fisheries, and tourism [8]. - The competition for climate aid is intensifying among major powers, impacting the effectiveness of multilateral climate mechanisms and increasing costs for clean technologies [8]. Group 4: International Response and Cooperation - The United Nations has emphasized the urgent need for global action against climate change, framing it as a survival threat [9]. - Multilateral mechanisms are crucial for addressing sea level rise, with various international organizations working to build consensus on climate action [9]. - Countries like the Netherlands are showcasing innovative water management strategies that could serve as models for other nations facing similar challenges [10].