Methodological and Practical Considerations for Developing Multiproject Baselines for Electric Power and Cement Industry Projects in Central America

The Lawrence Berkeley National Laboratory (Berkeley Lab) and the Center for Sustainable Development in the Americas (CSDA) conducted technical studies and organized two training workshops to develop capacity in Central America for the evaluation of climate change projects. This paper describes the results of two baseline case studies conducted for these workshops, one for the power sector and one for the cement industry, that were devised to illustrate certain approaches to baseline setting. Multiproject baseline emission rates (BERs) for the main Guatemalan electricity grid were calculated from 2001 data. In recent years, the Guatemalan power sector has experienced rapid growth; thus, a sufficient number of new plants have been built to estimate viable BERs. We found that BERs for baseload plants offsetting additional baseload capacity ranged from 0.702 kgCO2/kWh (using a weighted average stringency) to 0.507 kgCO2/kWh (using a 10th percentile stringency), while the baseline for plants offsetting load-following capacity is lower at 0.567 kgCO2/kWh. For power displaced from existing load-following plants, the rate is higher, 0.735 kgCO2/kWh, as a result of the age of some plants used for meeting peak loads and the infrequency of their use. The approved consolidated methodology for the Clean Development Mechanism yields a single rate of 0.753 kgCO2/kWh. Due to the relatively small number of cement plants in the region and the regional nature of the cement market, all of Central America was chosen as the geographic boundary for setting cement industry BERs. Unfortunately, actual operations and output data were unobtainable for most of the plants in the region, and many data were estimated. Cement industry BERs ranged from 205 kgCO2 to 225 kgCO2 per metric ton of cement.     

红外触发相机在新疆罗布泊野骆驼国家级自然保护区野生动物监测中的应用

2013年4月至2015年4月,利用红外触发自动相机开展保护区野生动物的监测研究,在保护区内的9个水源地布设了红外相机进行监测。监测期间共拍摄到照片73 421张,共记录到35种野生动物,其中兽类13种,鸟类22种,包括野骆驼、藏野驴、雪豹以及胡兀鹫、金雕、高山秃鹫等国家Ⅰ级保护动物。拍摄率最高的前5种食草动物分别是野骆驼、藏野驴、鹅喉羚、岩羊、盘羊,也是保护区观测区域中分布最广泛的物种。其中,野骆驼在9个位点都被拍到照片,是水源地占优势地位的物种。     

Biosphere II: Meeting ground for ecology and technology

Summary Biosphere II is a new project to build a self-contained ecological system containing humans, plants, and as many other living organisms as necessary for long-term sustenance. Soviet space scientists have already designed Bios 3, simulating conditions on board a flight to Mars. In building Biosphere II, the Institute of Ecotechnics (IE), in collaboration with Space Biospheres Ventures, Decisions Teams Limited, The Environmental Research Laboratory associated with The University of Arizona, and Sarbid Limited, plan to build the prototype of an artificial world in which environmental and ecological processes can be observed closely; An educational, scientific, and ethical laboratory, Biosphere II will raise public consciousness of the interdependence of all life. It will also serve as a control world where possibly harmful environmental effects can be modelled before they reach a crisis stage. Eventually the biospheres are to be marketed and set up in space as the biosphere, no longer in conflict with but aided by human technology, puts forth its young upon other celestial bodies.Dorion Sagan's most recent books areMicrocosmos andOrigins of Sex, both co-authored with Lynn Margulis. He is working onBiospheres, a book on closed ecological systems which is to be published shortly.