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Muddying the waters: weathering might remove less atmospheric CO2 than thought


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The weathering of rocks at the Earth s surface may remove less greenhouse gases from the atmosphere than previous estimates, says new research from the University of Cambridge.
The findings, published in
PNAS, suggest Earth s natural mechanism for removing carbon dioxide (CO2) from the atmosphere via the weathering of rocks may in fact be weaker than scientists had thought - calling into question the exact role of rocks in alleviating warming over millions of years.
The research also suggests there may be a previously unknown sink drawing CO2 from the atmosphere and impacting climate changes over long timescales, which researchers now hope to find. ....

United Kingdom , Emily Stevenson , Alasdair Knight , University Of Cambridge , Cambridge Department Of Earth Sciences , Salween Rivers , Tibetan Plateau , Yukon River , North America , Victoria Alcock , ஒன்றுபட்டது கிஂக்டம் , எமிலி ஸ்டீவன்சன் , அலச்டிர் நைட் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , கேம்பிரிட்ஜ் துறை ஆஃப் பூமி அறிவியல் , திபெத்தியன் பீடபூமி , யூகோன் நதி , வடக்கு அமெரிக்கா , விக்டோரியா அல்காக் ,