Extreme environmental threats

Examines water pollution and freshwater supply and demand, discusses how resources are polluted, and explores conservation and protection methods as well as improvements that can ensure quality water.

Explores endangered species and ecosystems, discusses various types of threats to animals and the environment, and examines ways they can be protected.

Examines deforestation and desertification, discusses the human impact on forests, and explores sustainable development and conservation.

The world's wildlife is vanishing at an alarming rate. People come to represent the single gravest threat to wildlife survival. Humans must realize the important role wildlife plays in the survival of the planet and reverse the damage-before it's too late.

Examines how rising sea levels effect the geographical shape of the world, how human populations contribute to this rise, and how scientific research is coping with those changes.

Discusses the effects of the increase in human population since the Industrial Revolution on the nitrogen cycle, looks at the impact of rising nitrogen levels on global climate, and suggests ways the problem might be addressed in the future.

Examines the evidence concerning the reduction of ice on the Antarctic continent and the major effects on coastal cities due to rising sea levels.

Examines the greenhouse effect and global warming, discusses their causes and effects, and explores possible solutions.

Examines water pollution and freshwater supply and demand, discusses how resources are polluted, and explores conservation and protection methods as well as improvements that can ensure quality water.

Explores endangered species and ecosystems, discusses various types of threats to animals and the environment, and examines ways they can be protected.