International scientists seek solutions for environmental problems

International Environmental Agreements for River Sharing Problems

We study coalition formation and the strategic timing of membership of an IEA for environmental issues in the Coalitional Bargaining Game (CBG) of Gomes (2005, Econometrica). For the general CBG, we derive the necessary and sufficient condition for immediate formation of the grand coalition. We apply the CBG to a river sharing problem with two symmetric upstream agents and one downstream agent....

Engineering Solutions to Environmental Problems

"market-based Solutions to Environmental Problems"

There is rapidly growing interest in the use of market-based (MB) instruments in environmental policy. The papers in this session discuss three relatively new areas for such policies: groundwater contamination, nonpoint source surface-water pollution and carbon sequestration. The papers point out the potential for MB policies in these areas, but significant challenges remain. This comment highl...

Maasai couples seek safer solutions to infertility.

Bull World Health Organ 2010;88:885–886 | doi:10.2471/BLT.10.031210 Infertility is a public health problem that affects all societies, not least traditional ones such as the Maasai of East Africa. In this Bulletin interview, Weiyuan Cui talks to Dr Yadira Roggeveen, a medical officer at Endulen Hospital in the Ngorongoro Conservation Area in the United Republic of Tanzania. Maasai couples seek ...

Research by environmental health scientists.

RECENT studies of carcinoembryonic antigen (CEA) have demonstrated that the putatively pure preparations of CEA were not homogeneous. Rule and Goleski-Reilly (1973), by the isoelectric focusing of saline extracts of tumour materials, detected 6 major and 6 minor CEA reactive peaks between pH 2 0 and 9 0. Coligan et al. (1973) demonstrated by isoelectric focusing and ion exchange chromatographic...