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A recorder of weather scale precipitation eventsisLand snail shell

Extreme weather events can exert profound impacts on society, economy and the environment. Short instrumental data limits our understanding of their mechanism and the evaluation of climate models. The time resolution in traditional paleoclimate studies is usually in months or even longer time.It makes it impossible to reveal extreme weather...

Fossil snail shells will help in analyzing ancient ocean chemistry

A collection of fossil shells from marine snails and clams is challenging a theory which suggests the world's deadliest mass extinction was accompanied by severe ocean acidification. Instead of showing damage or signs of repair which would be expected if the mollusk was surviving in acidic...