Core Viewpoint - The "Ocean and Climate Village" world tour exhibition aims to enhance public understanding of the ocean's critical role in regulating the Earth's climate system, aligning with the United Nations' goals for sustainable ocean development [3]. Group 1: Event Overview - The exhibition is held in Shanghai from October 10 to 19, co-hosted by UNESCO's Intergovernmental Oceanographic Commission and Prada Group [3]. - The event features various components, including a technology exhibition, photography exhibition, documentary screening, thematic discussions, and educational workshops [3]. - The exhibition is free to the public and has attracted over 12,000 visitors [3]. Group 2: Key Themes - The exhibition focuses on critical themes such as marine biodiversity, climate change, ocean acidification, sea level rise, and the impact of human activities on the ocean [3]. - It aims to achieve the seventh expected outcome of the UN's "Ocean Decade," which is to create an inspiring and attractive ocean [3]. Group 3: Expert Engagement - Experts from the Ocean Institute participated in discussions on "Ocean Literacy and Global Consensus," engaging with the public on topics related to ocean science, climate change, and public education [4].

Core Insights - An international research team led by researcher Chen Jitao from the Nanjing Institute of Geology and Palaeontology has published findings on the impact of global warming under high oxygen environments on oceans in the journal Proceedings of the National Academy of Sciences (PNAS) [1] Group 1: Research Context - The late Paleozoic glaciation period, lasting from 360 to 260 million years ago, is noted as the longest icehouse climate period since the establishment of terrestrial higher plants and ecosystems [4] - During this period, atmospheric oxygen levels peaked at approximately 1.2 to 1.7 times the current levels, potentially linked to the gigantism of marine and terrestrial animals and triggering significant marine biodiversity events [4] Group 2: Research Findings - The research team studied carbonate rock sediment sequences from 310 to 290 million years ago in the Guizhou Luodian Basin, exploring global carbon cycles and marine redox states during this period [5] - The findings indicate that increased organic carbon burial in the ocean may have led to a decrease in atmospheric CO2 and an increase in oxygen levels, despite high overall oxidation levels [5] - Intermittent massive carbon emissions during this time could cause repeated climate warming and hypoxia in the oceans, expanding the area of oceanic hypoxia to between 4% and 12%, potentially leading to stagnation or decline in marine biodiversity [5] Group 3: Implications - The study suggests that under current icehouse climates and high oxidation states, global warming may lead to widespread oceanic hypoxia, providing valuable insights into the interconnections and feedback mechanisms within the Earth's climate system [7]