Global warming

Tania Patricia Alfaro Campos

The current cycle of global warming is

changing the rhythms of climate that all living things have come to rely upon. What will we do to slow this warming? How will we cope with the changes we've already set into motion? While we struggle to figure it all out, the face of the Earth as we know it—coasts, forests, farms, and snowcapped mountains—hangs in the balance.

Global Warming

The greenhouse effect refers to circumstances

where the short wavelengths of visible light from the sun pass through a transparent medium and are absorbed, but the longer wavelengths of the infrared re-radiation from the heated objects are unable to pass through that medium. The carbon dioxide strongly absorbs infrared and does not allow as much of it to escape into space.

Greenhouse Effect

Pollution is the addition to the ecosystem of

something which has a detrimental effect on it. One of the most important causes of pollution is the high rate of energy usage by modern, growing populations.

Different kinds of pollution are found. In this section we will discuss:

1.Air Pollution. 2.Water Pollution. 3.Land Pollution.

Pollution

Recycling is the process of collecting and

processing materials that would otherwise be thrown away as trash and turning them into new products. Recycling can benefit your community and the environment.

Recycling

The Earth's ozone layer protects all life from

the sun's harmful radiation, but human activities have damaged this shield. Less protection from ultraviolet light will, over time, lead to higher skin cancer and cataract rates and crop damage. The U.S., in cooperation with 190 other countries, is phasing out the production of ozone-depleting substances in an effort to safeguard the ozone layer.

Ozone layer

Smog is a type of air pollutant. The word

"smog" was made in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky fog. The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London from the 19th century to the mid 20th century. This kind of smog is caused by the burning of large amounts of coal within a city; this smog contains soot particulates from smoke, sulfur dioxide and other components.

Smog