Global Warming?

Question

Can you give me a short explanation of Global Warming?
How it is started?
how we can prevent it?

thanks in advance

Answer 1

Well basically one side is telling you to listen to all sides of the issue. They're saying to be open minded and listen to all sides and read research from various scientists and decide for yourself whether Global Warming is true.

Then there is the other side that's saying that the debate is over and anyone who doesn't believe in the consenses works for some oil company in his spare time or is some Christian fundi or supports Bush.

Now it's up to you what you want to do but there is a lot of information out there and perhaps you should do your own research as it gets quite hot in this here yahoo answers and some responses seem more about emotions than just about the science.

Answer 2

Global Warming is the idea that we emit too much carbon in the air. Carbon is a greenhouse effect that causes the heat of the sun to stay on the Earth. This is how the Earth stays warm. However, since we emit too much Carbon into the atmosphere more heat is staying trapped on the Earth. This increase heat is melting our Glaciers to the point were Polar Bears are having a hard time finding solid ground. I know Polar Bears can swim, but then again so can humans. So to all those people that says that Polar Bears can swim I offer this challange. I will dump you in the Middle of the Atlantic Ocean and ask you to swim back to America. As the cold water of the glaciers mix with the warm water of the gulf stream a lot of problems will start to occur including the freezing of London. Before that happens we will see the Lost Civilization of New York as the state disappears into the ocean. Now this could be prevented because the plants that we rely on for Oxygen takes in Carbon. Unfortuantly humanity has been cutting down trees, rain forests and paving over nature to accomadate our industrious needs.

We can prevent this by taking better care of our Environment. Unplug appliances you are not using. Recycle, take public transportation, walk. Plant a tree, write to Congress urging them to decrease our dependence on fossil fuels (since they are not going to last forever) and start a real campaign for renewable resources (solar, wind, water). Turn off lights when not using them. Contrary to what the Conservatives would have you believe we can curb global warming without having to go back to the caves.

We must do something to curb global warming or we could be living in the last chance decade. It is basically up to you to decide which is more important. Having a strong economy or a strong environment. Now the Conservatives could be right and Global Warming is crap, however, with the stakes so high I would rather err on the side of caution because the alternative is far worse.

Answer 3

it is an outright lie, lead by fools and charlatans who hope to scare the American public into destroying our ecomny. I base this on the following facts that any 5th grader can easily check out if they really want to know the truth, instead of being lead by the nose like a complete fool.
1. The alarmist claim that burning fossil fuels is the cause of recent warming, however most of the warming took place before most of the increase of CO2. There was actually a significant cooling period from the mid-1940s to the late 1970s, while CO2 was increasing rapidly, and there was another increase from 1979 to 1998. In fact there has been no warming since 1998 – an eight-year period, and even a slight statistically cooling, despite the fact that CO2 has continued to rise.
2. The correlation between co2 emissions effecting global warming is extremely small compared to the correlation between global temperature and sun cycles. The sun cycles affect temperature in two ways first by the cycling up and down of actual heat energy that is emitted by the sun. This has a small effect on global temperature. The more important one is cycling in solar winds. Solar wind blocks cosmic radiation from coming into the Earth’s atmosphere. The more cosmic rays come in the more low level clouds there are and low-level clouds reflect solar heat energy back into space. If there are more clouds the earth is cooler and if there are fewer clouds, the earth is warmer. As solar wind cycles up cosmic rays cycle up and down in reverse and clouds up and down. So the solar window is very important to earth’s temperature, and neither you nor I have any control over these.

Answer 4

Basically, the sun warms the earth, when the heat is reflected back into space;, some of the heat is retained because of the "greenhouse gasses" in the atmosphere. If there were no greenhouse effect the earth would be much colder than it is.

One of those greenhouse gasses is c02. Humans use old stored c02 (coal, oil, gas etc) for power upsetting the natural cycle of warming and cooling.

It is warming faster than it otherwise would because of human activity. If we enter a cooling cycle, it will cool less, cool more slowly or fail to cool at all because of this human activity.

A great website for actual science is www. realclimate.org
they have lots of links to other sites so you can find what you need.

The theories the deniers are pushing now----sunspots etc have been considered and dismissed. The denier links lead to the financial times of Canada. The affirmer links lead to Science publications.
Make up your own mind baised on actual evidence.

Answer 5

Some gases ("greenhouse gases") let sunlight in, which warms the Earth, and then block that heat from leaving. That's the "greenhouse effect", and it's a natural thing, mostly caused by water vapor.

Man is making excessive amounts of greenhouse gases, mostly by burning fossil fuels. That causes the delicate natural balance to go out of whack and the Earth warms. That's global warming.

It won't be a Hollywood style disaster. Gradually coastal areas will flood and agriculture will be damaged. But it will be very bad. Rich countries will cope, but it will take huge amounts of money. In poor countries many people will die of starvation, but not all of them.

Most scientists say, in 20-50 years. But we need to start right now to fix it, fixing it will take even longer than that.

We need to conserve energy and develop alternative sources of energy instead of using fossil fuels.

More information here:

http://profend.com/global-warming/

Answer 6

Global Warming refers to our current global climate change which has been influenced by human activities, primarily CO2 emissions (ancient sunlight) which we have learned is an important GHG (Green House Gas). Other human activities also contribute to the present warming (i.e. clearing forests). Most of the increased CO2 and warming have both occured since the beginning of the Industrial Revolution and despite climate change being a part of the Earth's cycle, nothing in nature can explain the current climate change.

Once CO2 increased to a point that it had an effect on trapping heat in our atmosphere, feed back loops further accelerated the warming (i.e. melting ice exposes dark water and rock which instead of reflecting radiation, aborbs it and accelerates melting, melting frozen tundra releases millions of tons of methane, another GHG, etc...)


The only solution...

1) Reduce greenhouse emissions to near elimination in 30-50 years (burying it, filtering it, developing and using alternate CO2 free methods to supply energy, etc.).

2) Block a percentage of the sun's energy

3) Prepare for rising sea levels by improving infastructure

4) Continue to improve and implement green clean technology in all future development

5) Use fusion HHO (amazing, trust me... search Denny Klein) technology world-wide and immediately

6) Develop and implement CO2 filteration and ground storage

7) Develop and implement massive networks involving sea water filteration systems

8) Develop and implement additional means to block sun's radiation from coming in

9) Replace all Nuclear reactors with Fusion power plants, build them all over the world. It's already a reality but to be at the point for which it will start coming into play will take another 30-60 years depending on how hard we try.

A nearly free and absolutely clean energy source, fusion from water, will in most of our life times, become the world's main source of energy. One bathtub full of water will be able supply a middle-class family for a year. Compare that to the tons and tons of carbon we put into the air every year now (example, one gallon of gas converts easily to roughly 20 pounds of Carbon Dioxide but it takes 200,000 pounds of vegetation millions of years under pressure to make a gallon of gas)

World human fossil CO2 emissions emit in a single day what the equal to all the vegetation and organic matter in the world if it was for example all burnt. And to think there are people that can be convinced our CO2 emissions is not a problem, lol - terrible.

We can do something - our race can do something about this.

Click the link below to find several useful videos on this subject...

Answer 7

There is a website that provides information to answer your questions in as much detail as you'd like. It's Globalwarming101.com
An environmentalist, outdoor enthusiest, dogsledder Will Steger recently visited a place called Baffin Island. It's just north of Quebec near the artic circle. He spent 3months this past spring traveling by dog sled to various villages gathering information from the Innuit people there about how the warming planet has been hazardous to their health to the health of local wildlife that have provided food and revenue for their way of life. There's video footage of his visit on the global site too.

Answer 8

Global Warming started all because of the greedinesss in mankind .When money grew the greedines too grew and so it lead to wars and as everyone knows that bombings make air pollution .air pollution rises and and it destroyed the ozone layer, through which the sunrise increased and the ice in the polar regions melted and the water level increased. it also started because of littering , smoking , cutting down of trees.
The prevention can be done if we plant more trees and stop burning things, smoking, and totally stopping wars

Answer 9

The real problem is global cooling. Solar scientists predict that, by 2020, the sun will be starting into its weakest Schwabe solar cycle of the past two centuries, likely leading to unusually cool conditions on Earth.

Beginning to plan for adaptation to such a cool period, one which may continue well beyond one 11-year cycle, as did the Little Ice Age, should be a priority for governments. It is global cooling, not warming, that is the major climate threat to the world, especially Canada. As a country at the northern limit to agriculture in the world, it would take very little cooling to destroy Canadian food crops.

Answer 10

Basically, because we emit too much carbon dioxide (and other gases), the earth's atmosphere becomes thicker, and therefore retains heat from the sun better. This is called the "greenhouse effect".

At this point, it is not preventable for the near future, but by reducing gas emissions by using less power and gas, it can eventually, in hundreds of years, be reduced.