The decrease in the level of industrial production and the significant reduction of highly toxic substances used in the agriculture of the Volga region in the last decade did not maintain the expected decrease of pollution level in the Volga water. Concentration of many polluting substances in water continues to remain high. Among the numerous polluting substances in the Volga River two groups ...

This paper explores the effect of exclusionary ”ethical investing” on corporate behavior in a risk averse, equilibrium setting. While arguments exist that ethical investing can inßuence a Þrm’s cost of capital, and so affect investment, no equilibrium model has been presented to do so. We show that exclusionary ethical investing leads to ”polluting” Þrms being held by fewer investors since ”gre...

Green investing, or socially responsible investing (SRI), which refers to making investment decisions according to both financial and ethical criteria, has become increasingly popular in recent years. This paper explores the effects of ethical screening on the investment decisions of firms that fail the screen (’polluting’ firms) and on their decisions to reform so as to pass the screen. The pa...

The advantages/disadvantages of energy storage devices, which can provide nonpolluting automobile systems are discussed. Four types of storage devices are identified: electro-chemical (batteries) hydrogen electro-mechanical (flywheels) Molten salt heat storage A high speed flywheel with a small permanent magnet motor/generator has more advantages than any of the other systems and might become a...

A Less Polluting Pig There's good news in the fight against farm pollution, say researchers in the Department of Molecular Biology and Genetics at the University of Guelph in Ontario, Canada. In August, John Phillips, Cecil Forsberg, and Serguei Golovan announced a new kind of pig that makes better use of phosphorus, a nutrient that in high concentrations can deplete oxygen levels in waters dow...