Current and past land use practices are critical in determining the distribution and size of global terrestrial carbon (C) sources and sinks. Although fossil fuel emissions dominate the anthropogenic perturbation of the global C cycle, land use still drives the largest portion of anthropogenic emissions in a number of tropical regions of Asia. The size of the emission flux owing to land use cha...

Projections of future climate change made using state-of-the-art climate models suggest that changes over the coming century will be much larger than experienced over the past 100 years. The case for taking action to mitigate these human-induced (or ‘anthropogenic’) changes rests on the credibility of these models. There is a vast scientific literature on the development and testing of these mo...

This paper provides a brief overview of certain issues related to climate modeling and the role that dendrochronology can play, and has already played, in this context. Modeling is an essential approach to investigating the future evolution of the climate system in response to human activities. Tree-ring chronologies, on the other hand, have the capability of providing key parameters for model ...

Climate modeling, such as reported by the Intergovernmental Panel on Climate Change (IPCC), suggests that reductions of 50-85% in global emissions of CO2 (relative to the emission levels in 2000) are required to enable the stabilization of atmospheric levels of greenhouse gases (GHGs) at 440-490 ppm (~350-400 ppm CO2), corresponding to a global temperature increase in equilibrium of 2.0oC to 2....

The Stern Review (2006) has come to symbolize something of a dividing line in the evolution of the common appreciation of the climate problem. It is fair to say that during the last decade, there has been a gradual but uneven increase in the perceived gravity of anthropogenic climate change, among scientists and, with some time lag, the general public. However, save the United Nations’ Intergov...