Unprecedented images of Mount Erebus’s inner workings show the unique trappings of a CO2-rich rift volcano.
Less than half of the anthropogenic carbon dioxide remains in the atmosphere to drive climate change. The rest is being removed by mysterious processes in the land, biosphere, and ocean.
Models with smallest feedback errors are found to have moderate cloud feedbacks and equilibrium climate sensitivity of 3 to 4 degrees of warming when the concentration of carbon dioxide is doubled.
Past ocean surface conditions suggest that over the past 800,000 years, atmospheric carbon dioxide levels typically rose on millennial timescales when Atlantic overturning was weaker and vice versa.