Nature Geoscience - Current issue : July 2009 - Vol 2 No 7
- Ammonia hotspots revealed from space
- Sea-level rise: Spatially variable
- Mississippi drowning: Deficit of sediments
- Sustaining black smokers: Ongoing magma intrusion
Latest content
Current Issue
Climate commitments
Letter by Jones et al.
Some aspects of the Earth system — such as global mean temperatures, and sea-level rise due to thermal expansion or melting of large ice sheets — continue to respond to climate change long after the stabilization of radiative forcing. Simulations with a coupled climate–vegetation model show that similarly ecosystems may be committed to significant change after climate stabilization.
Current Issue
Delta downsizing
Letter by Blum et al.
Global sea-level rise, reduced sediment supply and subsidence threaten the stability of the Mississippi Delta. Calculations of riverine sediment load and storage indicate that 10,000 to 13,500 km2 of the delta could be submerged by AD 2100.
Current Issue
Converging south
Article by Sachs et al.
Seasonal changes in tropical rainfall patterns are associated with changes in the position of the intertropical convergence zone. Microbiological, molecular and hydrogen isotopic evidence from island lake sediments shows that the Pacific intertropical convergence zone was south of its modern position by as much as 500 km during the Little Ice Age.
Current Issue
Contextualizing climate
News and Views by Jungclaus
Understanding millennial-scale climate variability provides context for present and future climate change. It now emerges that temperatures were spatially and seasonally more heterogeneous over the past 1,000 years than previously thought.
Focus
In their report published in 2007, the Intergovernmental Panel on Climate Change projected that sea level is likely to rise between 18 and 59 centimetres by 2100, threatening the homes and livelihoods of millions who live in low-lying and deltaic regions. This focus draws together studies of past and present sea-level change, and predictions for future fluctuations, as well as presenting insights into the challenges facing coastal communities.
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