Examine this graph from FRONTLINE/NOVA: What's Up with the Weather? Web site to see dramatic increases in three greenhouse gases over the last two hundred years.

This course is assembled from UC-approved college preparatory courses and is designed to acquaint students with the physical, ecological, social, and political principles of environmental science. The scientific method is used to analyze and understand the inter-relationships between humans and the natural environment. The course shows how ecological realities and the material desires of humans often clash, leading to environmental degradation and pollution. The course covers: Earth's Systems, Human Population Dynamics, Natural Resources, Environmental Quality, Global Changes, and Environment and Society.

Human activities release a variety of substances into the biosphere, many of which negatively affect the environment. Pollutants discharged into the environment can accumulate in the air, water, or soil......

Auras instruments study tropospheric, or low-level atmospheric chemistry and will monitor of air pollution around the world on a daily basis. Aura measures five of the six "Criteria Pollutants" identified by the U.S. Environmental Protection Agency. The complexity of pollution transport makes it difficult to quantify how much industry contributes to poor local air quality.

Auras instruments study tropospheric, or low-level atmospheric chemistry and will monitor air pollution around the world on a daily basis. Aura measures five of the six "Criteria Pollutants" identified by the U.S. Environmental Protection Agency.

Auras instruments study tropospheric, or low-level atmospheric chemistry and will monitor of air pollution around the world on a daily basis. Aura measures five of the six "Criteria Pollutants" identified by the U.S. Environmental Protection Agency. In this animation, Aura shows a large concentration of tropospheric ozone is being transported from South America to Africa.

Add acidity to a healthy lake and see what happens to the plants and animals in this interactive activity adapted from EcoKids.

Students conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.

Students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them.

When a city is built, habitat and most organisms living in it are killed or forced to flee. Cities use a lot of energy and water and create a tremendous amount of waste and runoff. Development is the biggest source of pollution.

The AirData Web site gives you access to air pollution data for the entire United States. Want to know the highest ozone level measured in your state last year? Ever wonder where air pollution monitoring sites are located? Are there sources of air pollution in your town? You can find out here! AirData produces reports and maps of air pollution data based on criteria that you specify.

By watching and performing several simple experiments, students develop an understanding of the properties of air: it has mass, it takes up space, it can move, it exerts pressure, it can do work.

Students are introduced to the concept of air quality by investigating the composition, properties, atmospheric layers and everyday importance of air. They explore the sources and effects of visible and invisible air pollution. By learning some fundamental meteorology concepts (air pressure, barometers, prediction, convection currents, temperature inversions), students learn the impact of weather on air pollution control and prevention. Looking at models and maps, they explore the consequences of pollutant transport via weather and water cycles. Students are introduced to acids, bases and pH, and the environmental problem of acid rain, including how engineers address this type of pollution. Using simple models, they study the greenhouse effect, the impact of increased greenhouse gases on the planet's protective ozone layer and the global warming theory. Students explore the causes and effects of the Earth's ozone holes through an interactive simulation. Students identify the types and sources of indoor air pollutants in their school and home, evaluating actions that can be taken to reduce and prevent poor indoor air quality. By building and observing a few simple models of pollutant recovery methods, students explore the modern industrial technologies designed by engineers to clean up and prevent air pollution.

The Phoenix metropolitan area, like many large cities, has problems with air pollution at certain times of the year. You can do a simple experiment to determine some of the factors that affect air pollution.

Students learn what causes air pollution and how to investigate the different pollutants that exist, such as toxic gases and particulate matter. They investigate the technologies developed by engineers to reduce air pollution.

Formulating and analyzing texts about air pollution. You will learn which air polluters are in our homes and how they can be prevented.

Large amounts of nutrients from agricultural runoff and pollution cause increased growth of algae. Algal blooms cause other organisms to die because the algae uses up all the oxygen in the water to grow. Eventually, this body of water will have no life in it.

This red algal cell (Chlamydomonas nivalis) gives mountain snow packs a red tint. It uses the pollutants in snow as food. It cannot be seen without a microscope.

Aluminum cans can be recycled to reduce waste commonly found on roadsides. This will help reduce the amount of energy companies put out to make new cans as well.