Paul J. Valdes

TL;DR: Using a comprehensive Earth system model, this article showed that closure of the methane budget requires reduced emissions and an amplified sink caused by reduction in emissions of volatile organic compounds (VOCs) from LGM forests.

TL;DR: In this article, the authors used a 0.5°×−0.5µ grid of global interpolated climate data based on the data set of New et al. (1999) supplemented by the ERA40 re-analysis data for atmospheric temperature at upper levels.

TL;DR: In this paper, the authors investigate the effect of sunshade geoengineering on climate change in a fully coupled general circulation model and find significant cooling of the tropics, warming of high latitudes and related sea ice reduction, a reduction in intensity of the hydrological cycle, reduced ENSO variability, and an increase in Atlantic overturning.

TL;DR: It is found that the Eocene–Oligocene transition in south-eastern Tibet witnessed leaf-size diminution and a floral composition change from sub-tropical/warm temperate to cool temperate, likely reflective of both uplift and secular climate change, and that, by the latest Eocene, floral modernization on Tibet had already taken place, implying modernization was deeply rooted in the Palaeogene.

TL;DR: In this paper, the results of an early Eocene simulation made using a state-of-the-art General Circulation Model (GCM; HadCM3) with CO2 set at six times pre-industrial values and which has oxygen isotopes incorporated into the full hydrological cycle were presented.