Issue 1 - UNDERSTANDING THE GREENHOUSE EFFECT
Carbon dioxide is released into the air through natural and man-made causes. If the carbon dioxide levels continue to increase at the current rate without relief, scientists predict climatic changes, an escalating threat which is called the "greenhouse effect". This program describes the "greenhouse effect", its causes and impact on global warming, as well as what we're doing to contain it. - 14 Minutes

Issue 2 - NATURE'S DELICATE BALANCE
Increasingly aware that we are ultimately part of one huge, but delicately balanced planetary ecosystem, individuals, government, industry, and agriculture are getting more actively involved in monitoring, preserving, and restoring natural habitats and ecosystems. This issue visits several environmentally sensitive areas and the efforts needed to maintain such a delicate balance. - 13 Minutes

Issue 3 - LIFE IN THE DESERTS
Although deserts present some of the driest and harshest environments on earth, they are diverse and delicate ecosystems, supporting an amazing variety of life forms. Learn why and when the great deserts formed; journey to the different desert landscapes of the Sahara, the Kalahari, the Namib, and the southwestern United States; and see how desert dwelling plants and animals have adapted for life in their extreme habitats. - 22 Minutes

Issue 4 - THE AMAZING AMAZON
This issue embarks on a 4,000 mile journey along the Amazon River, from its source high in the Peruvian Andes to where it spills 100 miles out into the Atlantic Ocean. On the way, we'll learn about the Earth's water cycle, and the features typical of major rivers. We'll see how the river shapes the land as it makes its transition from trickling mountain stream to raging torrent, broadens and meanders across the flood plain, and divides in its delta. These transitions provide a variety of habitats for what may be the greatest diversity of life forms on the planet, and many interesting species are featured. - 13 Minutes