Define Global Warming?

Answer 1

Global warming is the observed increase in the average temperature of the Earth's atmosphere and oceans in recent decades and its projected continuation into the future

Answer 2

WHAT IS GLOBAL WARMING?

Carbon dioxide and other gases warm the surface of the planet naturally by trapping solar heat in the atmosphere. This is a good thing because it keeps our planet habitable. However, by burning fossil fuels such as coal, gas and oil and clearing forests we have dramatically increased the amount of carbon dioxide in the Earth’s atmosphere and temperatures are rising.

The vast majority of scientists agree that global warming is real, it’s already happening and that it is the result of our activities and not a natural occurrence The evidence is overwhelming and undeniable.

We’re already seeing changes. Glaciers are melting, plants and animals are being forced from their habitat, and the number of severe storms and droughts is increasing.


WIKIPEDIA DEFINITION

Global warming is the observed increase in the average temperature of the Earth's atmosphere and oceans in recent decades and its projected continuation into the future.

What causes global warming?

Carbon dioxide and other air pollution that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Coal-burning power plants are the largest U.S. source of carbon dioxide pollution -- they produce 2.5 billion tons every year. Automobiles, the second largest source, create nearly 1.5 billion tons of CO2 annually.

Here's the good news: technologies exist today to make cars that run cleaner and burn less gas, modernize power plants and generate electricity from nonpolluting sources, and cut our electricity use through energy efficiency. The challenge is to be sure these solutions are put to use.

Answer 3

The answers given describe mans impact on the climate, and has gone into the vocabulary as a bad thing. However, global warming itself was essential to keep life sustainable on the planet during the early life of the planet. Without global warming the Earth would be too cold too sustain life as it forms an important part of the atmospheric cycle. Global warming has been a natural part of the planetry cycle since the formation of the atmosphere, and the planet tends to go through cycles of warmth and cold. It can go from mild changes such as the 'little ice age' in Northern Europe in the 19th Century to very warm cycles such as during Roman times in England, where evidence of vine growing was found. It also can go to abrupt changes such as the last Ice Age when the majority of the UK was covered in Ice sheets. Scientists don't really understand why the planet cycles through these peroids of changable tempertures. At the moment we are at the end of the longest known interglacial peroid - a peroid without an Ice Age, and the climate is behaving the same way as it was during the begining of the last Ice age, long peroids of warm and mild weather. What appears to be happening today is that as the planet goes through its natural warming up peroid as it approaches the end of the interglacial, man seems to be adding to the impact of this natural planetry cycle.

Answer 4

Definition of Global Warming: Gradual increase in the earth's surface temperature.
Popular usage definition: Warming caused by human activity.
Technical term for this: Anthropogenic global warming.
Definition of Greenhouse Gas: A gas, like CO2, which traps the sun's heat.

Answer 5

Global Warming is this:

Around the Earth is this thing called the atmosphere, which protects us from too much of the sun's heat and light intensity. Pollution is getting trapped in the atmosphere with no way to escape. The sun's light is coming in, but excess heat and light is unable to get out because of all the pollution. Gradually, the heat is building up and the polar ice caps are melting :) Hope that helps.

Answer 6

It is a global temperature change trend, just like the global cooling, which is occuring at the same time. Todays science knows as much about global warming as about global cooling.

Answer 7

Global warming is an increase of the average temperature of the Earth's atmosphere and oceans. It is mostly due to an augmentation of Green House Gasses (such as carbon dioxide), which trap the heat from the sun. Changes can include: a rising sea level and changes in the amount and pattern of precipitation, which can lead to the increase of the frequency and intensity of extreme weather events, such as floods, droughts, heat waves, hurricanes, and tornados, higher or lower agricultural yields, glacier retreat, reduced summer streamflows, species extinctions and increases in the ranges of disease vectors.

Answer 8

Global warming is the observed increase in the average temperature of the Earth's atmosphere and oceans in recent decades and its projected continuation into the future

Answer 9

global warming (n.) An increase in the average temperature of the earth's atmosphere, especially a sustained increase sufficient to cause climatic change.

Answer 10

The definition is really user-friendly – “an advance in the traditional temperature of Earth’s surroundings”. A extra customary definition that with reference to the human portion of international warming might want to be “an advance in the traditional temperature of Earth’s surroundings to that end of anthropogenic greenhouse gas emissions”.