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 E-Mail 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 kingdomEmily stevensonAlasdair knightUniversity of cambridgeCambridge department of earth sciencesSalween riversTibetan plateauYukon riverNorth americaVictoria alcockஒன்றுபட்டது கிஂக்டம்எமிலி ஸ்டீவன்சன்அலச்டிர் நைட்பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ்கேம்பிரிட்ஜ் துறை ஆஃப் பூமி அறிவியல்திபெத்தியன் பீடபூமி