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electric motor that assists the engine when accelerating

powered by batteries that recharge automatically while the car is being driven.

hybrid provides lower gasoline consumption and a lower level of polluting emissions than the gas-powered car;

Exposure to arsenic can occur from the environment and food consumption

Arsenic contamination of groundwater has led to a massive epidemic of arsenic poisoning in Bangladesh[32] and neighbouring countries.

Presently 42 major incidents around the world have been reported on groundwater arsenic contamination. It is estimated that approximately 57 million people are drinking groundwater with arsenic concentrations elevated above the World Health Organization's standard of 10 parts per billion. However, a study of cancer rates in Taiwan [33] suggested that significant increases in cancer mortality appear only at levels above 150 parts per billion. The arsenic in the groundwater is of natural origin, and is released from the sediment into the groundwater due to the anoxic conditions of the subsurface.

largest and most productive estuaries in North America.  

However, in 1993 the EVOS Trustee Council funded an additional survey that estimated 7 km of shoreline were still contaminated with subsurface oil.

Because a significant survey of Prince William Sound had not been conducted since 1993 and the cumulative extent of the remaining oil was unknown, concerns were generated by the public and scientific communities about the oil’s possible continuing effects on humans and fauna potentially exposed to the oil directly or indirectly.

The western portion of Prince William Sound was the most heavily oiled in 1989 and oil on some beaches remains a serious concern for residents of the Sound who use these areas.

The remaining 1,100 miles of oiled shoreline were considered to have light to very light oiling. Crews visiting beaches in 1993 found hundreds of sites that contained substantial oil deposits.

A 1992 National Oceanic and Atmospheric Administration (NOAA) study* estimated that a great majority of the oil evaporated, dispersed into the water column or degraded naturally.

Reasons for Global Warming Global warming can be minimized to a great extent, if we eliminate the causes which are mostly human made. The responsibility of preventing global warming rests both on individual as well as the state. In individual level we can change our practices such as minimize the usage of fossil based fuel, reduce the electricity consumption by using energy efficient appliances. Vehicular pollution can be minimized by using the public transport system. The nucleus goal is to beget the global warming under control by restricting the carbon dioxide release and other heat ensnaring greenhouse gases into the environment. On an average nearly 10000 pounds of carbon dioxide is released per year in significant countries like Canada and US. This can be immediately curtailed by becoming energy efficient. Reducing the usage of oil, coal and gasoline are one of the effective ways of preventing global warming.

Tokyo, Japan Current Population: 35.2 million Projected 2025 Population: 36.4 million Annual Growth Rate 2007 to 2025: 0.11%

Tokyo is a major global financial center. Its rail system, the largest in the world, is clean and efficient.

Tokyo's water and electricity capacity is in fine shape for a growing population, experts say

Though Section 316(b) of The Clean Water Act requires power plants to employ BTA to protect aquatic life, U.S. power plants withdraw over 214 billion gallons daily from water bodies, killing billions of fish.