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fromwww.scientificamerican.com
53 minutes ago

Poop, stomach oil and ostrich eggshells keep records of Earth's ancient climate

The solidified oil is an indirect record, or proxy, of the past that scientists rely on because we don't have a time machine. Researchers trying to understand Earth's climate and ecosystems need to trace rainfall, ice coverage, fire and other factors over thousands or millions of years—far longer than human records.
Science
Science
fromNature
2 months ago

From Victorian voyages to vanishing maps: Books in brief

Historical expeditions and proxy records reveal long-term Earth and ocean processes essential for understanding and addressing contemporary climate and environmental challenges.
Environment
fromNature
2 months ago

Tree rings and salt lakes give clues about ancient rainfall

Replace hazardous pesticides and apply diverse paleoclimate measurement methods to reconstruct past climate changes.
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