【地质时间尺度上CO2驱动下气候与海平面的关系】Gavin L. Foster and Eelco J. Rohling. Relationship between sea level and climate forcing by CO₂on geological timescales. PNAS 2013 doi: 10.1073-pnas.1216073110.

Abstract

On 10³- to 10⁶-year timescales global sea level is determined largely by the volume of ice stored on land which in turn largely reflects the thermal state of the Earth system. Here we use observations from five well-studied time slices covering the last 40 My to identify a well-defined and clearly sigmoidal relationship between atmospheric CO₂ and sea level on geological (near-equilibrium) timescales. This strongly supports the dominant role of CO₂ in determining Earth’s climate on these timescales and suggests that other variables that influence long-term global climate (e.g. topography ocean circulation) play a secondary role. The relationship between CO₂ and sea level we describe portrays the “likely” (68% probability) long-term sea-level response after Earth system adjustment over many centuries. Because it appears largely independent of other boundary condition changes it also may provide useful long-range predictions of future sea level. For instance with CO₂ stabilized at 400–450 ppm (as required for the frequently quoted “acceptable warming” of 2 °C) or even at AD 2011 levels of 392 ppm we infer a likely (68% confidence) long-term sea-level rise of more than 9 m above the present. Therefore our results imply that to avoid significantly elevated sea level in the long term atmospheric CO₂ should be reduced to levels similar to those of preindustrial times.

【高温胁迫】Pratyusha Chennupati Philippe Seguin * Rony Chamoun and Suha Jabaji. Effects of High-Temperature Stress on Soybean Isoflavone Concentration and Expression of Key Genes Involved in Isoflavone Synthesis. J. Agric. Food Chem