August 31, 1992

BAKA – Termites

For hunter-gatherers, insects are often an important source of protein. Every year, the Baka use an ingenious method to harvest these rainforest delicacies.

August 28, 1992

BAKA – People of the Rainforest

The Baka use their knowledge of plants to help them catch fish.

August 27, 1992

HIPPOS – Echolocation

There’s evidence that hippos, distant relatives of both dolphins and whales, may also use sound to echolocate.

August 26, 1992

HIPPOS

Hippos produce sounds that especialy suited for simultaneous transmission both in the air and through the water.

August 25, 1992

CALIFORNIA WATER – Agriculture

In California, water for agriculture has been cheap and plentiful, but a recent drought and continuing shortage may be changing the status quo.

August 24, 1992

TROPICAL WOOD – New Varieties

New kinds of exotic hardwoods, sustainably harvested, offer a challenge to woodworkers, and a means of prolonging the life of the rainforest.

August 21, 1992

TROPICAL WOOD – Marketing Diversity

In the process of harvesting a few marketable species of hardwoods, much valuable wood is wasted, not to mention the harm to the rainforest ecosystem.

August 20, 1992

TROPICAL WOOD

The way wood is harvested has a direct impact on the rainforest’s survival.

August 19, 1992

CALIFORNIA WATER – Use

Reducing water allocation for agriculture, won’t necessarily make it available for California’s cities.

August 18, 1992

CALIFORNIA WATER – The Peripheral Canal

How to move water through the Sacramento-San Juaquin river delta is one the major challenges facing California.

August 17, 1992

PLANT IMMIGRANTS – Crowding Out Diversity

When plant habitats are disturbed, native species tend to be crowded out by aggressive weeds, threatening the diversity of the ecosystem.

August 14, 1992

PLANT IMMIGRANTS

Tumbleweeds, dandelions and other plants now common to the American landscape, have actually been brought here from overseas.

August 13, 1992

CALIFORNIA WATER- Storage

In the long run, solving California’s water problems may depend upon storing and delivering excess water to where it’s needed.

August 12, 1992

CALIFORNIA WATER- Conservation

A broad spectrum of conservation measures is helping to lessen the effects of California’s water shortage.

August 11, 1992

CALIFORNIA WATER

A decreasing supply and an increasing demand have prolonged California’s water shortage.

August 10, 1992

BIOMASS FUEL – Sweden’s Choice

Having decided to phase out their nuclear power plants, Sweden has been searching for new energy sources.

August 7, 1992

BIOMASS FUEL – Alcohol Gasoline

Ninety percent of the new cars sold in Brazil run purely on alcohol fuel.

August 6, 1992

BIOMASS FUEL

Sugarcane pulp and other forms of organic matter can be used as a ready source of fuel for generating electricity.

August 5, 1992

TOXIC SHIPMENTS – The Waste Trade

It’s often cheaper to ship hazardous waste overseas, than to dispose of it at home.

August 4, 1992

TOXIC SHIPMENTS

Every year, tons of hazardous wastes are shipped abroad by the United States and other industrialized nations.

August 3, 1992

SPACE POLLUTION – Electromagnetic Radiation

Orbiting nuclear reactors have been posing a variety of problems to space scientists.