News |
Featured
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News |
Water vapour could be behind warming slowdown
Mysterious changes in the stratosphere may have offset greenhouse effect.
- Jeff Tollefson
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Research Highlights |
Atmospheric science: Stronger storms
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Research Highlights |
Biomaterials: Super snail shells
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News & Views |
Degrees of climate feedback
A probabilistic analysis of climate variation during the period AD 1050–1800 refines available estimates of the influence of temperature change on the concentration of carbon dioxide in the atmosphere.
- Hugues Goosse
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News |
Icy hunt for old air
Antarctic drilling project aims for a definitive record of climate.
- Chaz Firestone
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Letter |
Ensemble reconstruction constraints on the global carbon cycle sensitivity to climate
Anthropogenic global warming is likely to be amplified by positive feedback from the global carbon cycle; however, the magnitude of the climate sensitivity of the global carbon cycle, and thus of its positive feedback strength, is under debate. By combining a probabilistic approach with an ensemble of proxy-based temperature reconstructions and pre-industrial CO2 data from three ice cores, this climate sensitivity is now shown to be much smaller than previously thought.
- David C. Frank
- , Jan Esper
- & Fortunat Joos
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News |
Early humans wiped out Australia's giants
Climate not to blame for the extinction of Australia's big animals.
- Cheryl Jones
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News |
Senate climate debate up in the air
Moves by Republicans shift the US legislative landscape.
- Jeff Tollefson
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Letter |
Increasing springtime ozone mixing ratios in the free troposphere over western North America
High concentrations of ozone in the troposphere are toxic and act as a greenhouse gas. Anthropogenic emissions of ozone precursors have caused widespread increases in ozone concentrations since the late 1800s, with the fastest-growing ozone precursor emissions currently coming out of east Asia. Much of the springtime east Asian pollution is exported towards western North America; a strong increase in springtime ozone mixing ratios is now found in the free troposphere over this region.
- O. R. Cooper
- , D. D. Parrish
- & M. A. Avery
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Research Highlights |
Geoscience: Blowin' in the wind
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Editorial |
Climate of suspicion
With climate-change sceptics waiting to pounce on any scientific uncertainties, researchers need a sophisticated strategy for communication.
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Authors |
Abstractions
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News Feature |
The real holes in climate science
Like any other field, research on climate change has some fundamental gaps, although not the ones typically claimed by sceptics. Quirin Schiermeier takes a hard look at some of the biggest problem areas.
- Quirin Schiermeier
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News |
Glacier estimate is on thin ice
IPCC may modify its Himalayan melting forecasts.
- Quirin Schiermeier
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Letter |
Dominant control of the South Asian monsoon by orographic insulation versus plateau heating
The elevation of the Tibetan plateau is thought to cause its surface to serve as a heat source that drives the South Asian summer monsoon, potentially coupling uplift of the plateau to climate changes on geologic timescales. Here, however, an atmospheric model is used to show that flattening of the Tibetan plateau has little effect on the monsoon, provided that the narrow orography of the Himalayas and adjacent mountain ranges is preserved.
- William R. Boos
- & Zhiming Kuang
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News & Views |
A moist model monsoon
Received wisdom about the main driver of the South Asian monsoon comes into question with a report that tests the idea that the Himalayas, not the Tibetan plateau, are the essential topographic ingredient.
- Mark A. Cane
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News |
Missed 2050 climate targets will reduce long-term options
Models suggest that drastic action will be needed in the latter half of the century.
- Jeff Tollefson
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News |
Oceans release DDT from decades ago
Emissions of controversial pesticide are heading northwards.
- Richard A. Lovett
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News |
Sea stars suck up carbon
Much more carbon is sequestered by echinoderms than previously thought.
- Matt Kaplan
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Letter |
Anthropogenic carbon dioxide transport in the Southern Ocean driven by Ekman flow
The Southern Ocean is potentially a substantial sink of anthropogenic carbon dioxide; however, the regulation of this carbon sink by the wind-driven Ekman flow, mesoscale eddies and their interaction is under debate. Here, a high-resolution ocean circulation and carbon cycle model is used to study intra-annual variability in anthropogenic carbon dioxide over a two-year time period; the Ekman flow is found to be the primary mechanism of anthropogenic carbon dioxide transport across the Antarctic polar front.
- T. Ito
- , M. Woloszyn
- & M. Mazloff
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Correspondence |
Climate e-mails: man's mark is clear in thermometer record
- Hans von Storch
- & Myles Allen
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Column |
World view: Tomorrow never knows
Science should focus more on understanding the present and less on predicting the future, argues Daniel Sarewitz.
- Daniel Sarewitz