what is global warming?

Answer 1

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.

Answer 2

Mayra P,

That's a good question. I left an answer for your question about stopping global warming too.

A long time ago (thousands or maybe millions of years), the earth was in the Ice Age. Glaciers formed and extended into North America. Then the Ice Age ended and the glaciers began melting.

This natural process of 'global warming' is what people are talking about.

Humans contribute to this process because we are warm blooded and we heat our homes and have barbecues. Some businesses contribute on a larger scale.

There isn't anything humans can do to stop the warming. The best we can do is just live our lives (perhaps in moderation) and not worry about something we don't control.

Answer 3

What is Global Warming?
Global Warming is an increase in the near surface temperature of the Earth. It is a term most often used to refer to the warming predicted to occur as a result of increased emissions of greenhouse gases. It is different from the term climate change in that climate change is more broad and refers in the wider sense to also include natural changes in climate. Climate change and global warming have occurred on Earth as the result of natural influences and in cycles throughout the history of the Earth; however, the current warming we are experiencing and that is expected to continue is the result of human-caused increases in greenhouse gases, specifically carbon dioxide. There is more carbon dioxide in the atmosphere now than there has been in the past 650,000 years. The carbon dioxide stays in the atmosphere and acts like a warm blanket that holds in the heat. This phenomenon is called the greenhouse effect

Answer 4

In a few words:
Global warming is the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution.

The first three definitions are from wikipedia.

Answer 5

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.

Answer 6

A warming of the globe.

Answer 7

it means that all the tempatures have risen slightly

Answer 8

http://video.google.com/videosearch?q=label%3A%22global%20warming%20swindle%22