This case study asks students to examine how PCBs (polychlorinated biphenyls) are transferred globally. The lesson will provide students a review of the scientific method, and encourage them to design experiments that...

Most people are aware that plants undergo photosynthesis, a process by which they convert sunlight and carbon dioxide in sugar and water. But not as many realize that plants also undergo respiration, which is the reverse...

This site from the EPA provides a useful Energy Pollution Calculator which will help students and other interested persons calculate the greenhouse gases and other pollutants created from the energy they consume. The...

This journal article examines the major sources of pollution in the Rio Tinto estuary of southern Spain. The introduction includes a historical perspective of the region, description of the Rio Tinto system, and results...

The terms greenhouse effect, climate change, and global warming are often used interchangeably, yet they really refer to three separate and distinct processes. This activity examines all three and assesses whether...