Weather extremes influence illegal migration and return between the US and Mexico, study finds
CNN
Extreme weather is contributing to undocumented migration and return between Mexico and the United States, suggesting that more migrants could risk their lives crossing the border as climate change fuels droughts, storms and other hardships, according to a new study.
Extreme weather is contributing to undocumented migration and return between Mexico and the United States, suggesting that more migrants could risk their lives crossing the border as climate change fuels droughts, storms and other hardships, according to a new study. People from agricultural areas in Mexico were more likely to cross the border illegally after droughts and were less likely to return to their original communities when extreme weather continued, according to research this week in the journal Proceedings of the National Academy of Sciences. Across the globe, climate change — caused by burning fossil fuels such as coal and natural gas — is exacerbating extreme weather. Droughts are longer and drier, heat is deadlier and storms are rapidly intensifying and dumping record-breaking rain. In Mexico, a country of nearly 130 million people, drought has drained reservoirs dry, created severe water shortages and drastically reduced corn production, threatening livelihoods. Researchers said Mexico is a notable country for studying the links between migration, return and weather stressors. Its mean annual temperature is projected to increase up to 3 degrees Celsius (5.4 degrees Fahrenheit) by 2060, and extreme weather is likely to economically devastate rural communities dependent on rain-fed agriculture. The US and Mexico also have the largest international migration flow in the world. Scientists predict migration will grow as the planet gets hotter. Over the next 30 years, 143 million people worldwide are likely to be uprooted by rising seas, drought, searing temperatures and other climate catastrophes, according to a UN Intergovernmental Panel on Climate Change report.
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