Buy Value PC Rock weathering and the climate Rockfall protection, cliff stabilization & geohazard mitigation. Since the early 1980s, Earth sci entists have understood that erosion and weathering of rock slowly removes CO2 from the atmosphere, regulating Earth’s climate on geological timescales. But recent studies have shown that erosion can also emit CO2 by oxidizing organic carbon contained in eroding sediments. It hasn’t been clear ho...