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Climate change, human activity causing global water cycles to become 'increasingly erratic': World Meteorological Organization_我的网站

A |     Climate change and human activity are causing the world's hydrological cycle to spin out of balance, according to a new report from the World Meteorological Organization.Global water cycles are becoming "increasingly erratic" due to droughts, extreme rainfall and the increased melting of snow, ice and glaciers -- all of which are a threat to long-term water security, the 2022 State of Global Water Resources report, released Thursday, found.About 3.6 billion people already face inadequate access to water at least a month per year, according to the United Nations. That number is expected to increase to 5 billion by 2050, officials said.Extreme glacier loss is occurring from the Tibetan Plateau to mountain ranges in the Himalayas, the Alps and the Andes -- all of which threaten the water security for millions of people who live on the rivers supplied by the melting."Glaciers and ice cover are retreating before our eyes," WMO Secretary-General Petteri Tallas said in a statement.In addition, rising temperatures have accelerated, causing the atmosphere to hold more moisture and facilitate more heavy downpour episodes that lead to flooding, Tallas said, adding that the "overwhelming majority" of disasters are water-related.More than 50% of the global catchment areas in large river basins experienced deviations from normal discharge conditions in 2022, according to the report. Most of these areas were drier than normal, but a smaller percentage of basins displayed above or much above normal conditions.Hotter temperatures are also causing more evaporation and much more intense droughts, Tallas said.Throughout 2022, anomalies in soil moisture and evaporation also experienced deviations, according to the report. Places like Europe saw increased evaporation and decreased soil moisture and river flows during the summer due to a major heat wave and drought, which led to challenges in agriculture as well as the shutdown of some hydrological power plants due to lack of cooling water, according to the report.Severe droughts impacted other parts of Europe in Summer 2022, posing transportation challenges on the Danube and Rhine rivers in Germany, and disrupting nuclear power production in France. In the U.S., the navigation on the Mississippi River was affected by extremely low water levels due to the continuous drought occurring in the region.The switch from La Nina in 2022 to El Nino conditions in 2023 will likely also have a major impact on water cycles around the world, the researchers said.The WMO is calling for improved monitoring and data-sharing across borders, as well as an increase in investments to facilitate international collaboration, in order to help society cope with increasing water extremes, whether it be too much or too little. They are also calling for more early warnings, and coordinated water management policy, according to the report.。    “三爱少年科学院”          院徽和吉祥物定了！                              经过一个多月的精心筹备与激烈角逐，我校“三爱少年科学院”院徽和吉祥物征集大赛圆满落下帷幕！感谢各位师生、家长朋友以及校外人士的热情参与。

B |          先经过初步筛选、线上投票，再结合我校校情及专业评审，最终定下了院徽和吉祥物。                   01          院徽                              横版院徽                    院徽          三爱追光少年                                                                                                                                                                                    02          吉祥物                              吉祥物的设计者是我校三年7班的陈柏宇。他深入思考“三爱”精神，并融合科学元素，构思出一个由两种度量工具组成的吉祥物“杏杏”和小火箭造型的吉祥物“东东”。随后，他手绘出初稿，不断调整比例和色彩，力求完美。在家长的帮助下，他学习使用绘图软件，将手绘稿转化为电子绘图，期间不断与家长讨论，优化设计。经过多次修改，最终，一组色彩鲜明、寓意深刻的吉祥物诞生了，它不仅融合了我校校训和科学学习元素，还传达了积极向上的精神。                                                           杏杏          大家好,我是杏杏!我是由两种度量工具组成的:又能量长度，又能量液体体积。我最大的特点是一丝不苟。

C | 最喜欢吃彩虹糖和保持整洁，最害怕的是橡皮擦，它经常黏在我身上。         你会喜欢我吗?                                                            东东          大家好！我是东东，还有个昵称叫“小东风”。之所以有这个名字，是因为我对东风情有独钟，它代表着春天的气息。

D | 我的形象就像一支充满活力的小火箭，我希望能和同学们一起，借着科学这股强劲的“小东风”，直冲云霄，实现我们的梦想。         吉祥物“杏杏”和“东东”造型变身                    陈柏宇创作过程                                                                                                                                                                                                        /          此外，我们还评选出一批优秀的设计作品，获奖名单如下：                                                  一、院徽                                        最具人气奖：二年8班王馨悦          最佳灵感奖：六年5班陈思涵          童趣创意奖：一年7班陈思源          手绘之星奖：四年8班黄肖鑫          最佳寓意奖：二年3班黄子辰          科创融合奖：四年8班周玥欣          色彩搭配奖：一年7班孙朵儿                                                            作品展示                    向上滑动阅览                    最具人气奖：二年8班王馨悦          最佳灵感奖：六年5班陈思涵          童趣创意奖：一年7班陈思源          手绘之星奖：四年8班黄肖鑫          最佳寓意奖：二年3班黄子辰          科创融合奖：四年8班周玥欣          色彩搭配奖：一年7班孙朵儿                                                                                                    二、吉祥物                                                  最具人气奖：四年8班黄肖鑫          形象塑造奖：一年7班陈思源          最佳故事奖：二年2班苏一朵          手绘之星奖：二年8班贾云舒          童趣创意奖：一年6班叶昕艺          互动设计奖：四年10班叶舻艺                                                  作品展示                    向上滑动阅览                    最具人气奖：四年8班黄肖鑫          形象塑造奖：一年7班陈思源          最佳故事奖：二年2班苏一朵          手绘之星奖：二年8班贾云舒          童趣创意奖：一年6班叶昕艺          互动设计奖：四年10班叶舻艺                                                            每一份作品都凝聚了同学们、家长们的辛勤付出与创意火花。我们坚信，这些作品将激励更多同学投身科学探索，热爱学习，热爱生活，共同书写“三爱少年科学院”更加辉煌的篇章。                   【END】                    美编：罗智文          撰稿：林曼璐 朱艺敏          初审：叶淑琼          复审：许晓莹          终审：陈志良。

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Published on:09:07:41