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Natural Lab Shows Sea's Acid Path
from BBC News Online
Natural carbon dioxide vents on the sea floor are showing scientists how carbon emissions will affect marine life.
Dissolved CO2 makes water more acidic, and around the vents, researchers saw a fall in species numbers, and snails with their shells disintegrating.
Writing in the journal Nature, the UK scientists suggest these impacts are likely to be seen across the world as CO2 levels rise in the atmosphere. Some of the extra CO2 emitted enters the oceans, acidifying waters globally.
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Extreme events, such as super floods and hurricanes, are becoming more common, so civil engineers are trying to adapt civil infrastructure such as bridges to these unpredictable and sometimes devastating meteorological events. Engineer Ana Barros discusses how engineering can prepare us for extreme weather events, but also how changing climate and population conditions can affect the ability of infrastructure to hold up over time.
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