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Anthropogenic climate change for 1860 to 2100 simulated with the HadCM3 model under updated emissions scenarios
Abstract. In this study we examine the anthropogenically forced climate response over the historical period, 1860 to present, and projected response to 2100, using updated emissions scenarios and an
Indirect sulphate aerosol forcing in a climate model with an interactive sulphur cycle
The effects of anthropogenic sulphate aerosol on cloud albedo and on precipitation efficiency (the first and second indirect effects, respectively) are investigated using a new version of the Hadley
A climate model study of indirect radiative forcing by anthropogenic sulphate aerosols
ANTHROPOGENIC sulphate aerosols are believed to affect the radiation budget of the Earth in two ways. Through the direct effect they scatter solar radiation back to space, producing a radiative
General Circulation Model Calculations of the Direct Radiative Forcing by Anthropogenic Sulfate and Fossil-Fuel Soot Aerosol
Abstract A new radiation code within a general circulation model is used to assess the direct solar and thermal radiative forcing by sulfate aerosol of anthropogenic origin and soot aerosol from
Fire As an Engineering Tool of Early Modern Humans
Replication experiments and analysis of artifacts suggest that humans in South Africa at this time, and perhaps earlier, systematically heated stone materials, including silcrete to improve its flaking properties in making tools.
Climate sensitivity to black carbon aerosol from fossil fuel combustion
[1] Black carbon aerosol particles from fossil fuel combustion are good absorbers of solar radiation and hence exert a positive radiative forcing, reinforcing the warming due to anthropogenic
Significance of Sighting Rate in Inferring Extinction and Threat
A probabilistic method is applied that incorporates sighting rate to the sighting record of Vietnamese slipper orchids (Paphiopedilum) and generates a probability that another sighting will occur given the previous sighting rate and the time since last observation.
Flightless birds: When did the dodo become extinct?
This work uses a statistical method to establish the actual extinction time of the dodo as 1690, almost 30 years after its most recent sighting.