Cause Global Warming

Study: Warming oceans destroy ice sheets

As Greenland and Antarctica's ice sheets disappear, they make sea levels rise and Earth's problems that much bigger.

Researchers in a UA-led study uncovered the effects of warming ocean temperatures on the two ice sheets using 19 different climate models. The simulated worlds comprise 2 million lines of code, are compiled across decades of work and allow scientists to project and plan ahead, said and lead researcher and climate modeler for the study, said measuring the ice sheets' local ocean temperatures has been a challenge due to lurking icebergs that are not boat-friendly. And now, for the first time in history, scientists have quantified and compared subsurface ocean warming around the polar ice sheets.

The sea level currently rises at a rate of about 3 millimeters per year, Yin said. The subsurface oceans along Greenland are struggling to keep their current temperatures just above the freezing point of 0 degrees Celsius and could increase 2 degrees by the end of the century. Antarctica's slightly slower temperature increase of 0.5 C could occur by 2100 as well.

Passing off the greenhouse gas problem to later generations may not be an option either.

The global average temperature rising, penguin colonies being wiped out, the Great Barrier Reef on the inevitable path to destruction and other harsh impacts will have to be dealt with within the next 20 to 40 years, Russell said.

The environmental effects on Tucson's monsoon season would not be the extent of the local repercussions. Even though sea level rise is not a problem in Southern Arizona, the region may catch the effects of economic ruin from impacted areas that will have to be collectively made up through higher taxes, Russell added. Human migration from devastated areas could take a toll as well.

"I'm the one who's going to be dead," Russell said. "You guys are going to be the ones that have to deal with the consequences …. It's your world … If I were a student here at the UA, I'd want to get as informed as possible so that I can help make the decisions that will have to be

In a world of worst-case scenarios, where the Greenland and Antarctica ice sheets no longer exist, global sea levels would rise 77 meters. And although a disaster like that would occur over the course of millennia, Yin said making minor changes today could change the course of human history tomorrow.  

"I'm biking every day," Yin said.

Global Warming – Truth, Facts And Lies | Environmental Challenges ...

Naturally occurring greenhouse gases have a mean warming effect of about 33 °C (59 °F). The major greenhouse gases are water vapor, which causes about 36–70 percent of the greenhouse effect; carbon dioxide, which causes 9–26 percent; methane ,which causes 4–9 percent; and ozone (O3), which causes 3–7 percent. Clouds also affect the radiation balance, but they are composed of liquid water or ice and so have different effects on radiation from water vapor.

Global warming is affecting many parts of the world. Global warming makes the sea rise, and when the sea rises, the water covers many low land islands. This is a big problem for many of the plants, animals, and people on islands. The water covers the plants and causes some of them to die. When they die, the animals lose a source of food, along with their habitat. Although animals have a better ability to adapt to what happens than plants do, they may die also. When the plants and animals die, people lose two sources of food, plant food and animal food. They may also lose their homes. As a result, they would also have to leave the area or die. This would be called a break in the food chain, or a chain reaction, one thing happening that leads to another and so on. Algae is a producer that you can see floating on the top of the water. (A producer is something that makes food for other animals through photosynthesis, like grass.) This floating green algae is food to many consumers in the ocean. (A consumer is something that eats the producers.) One kind of a consumer is small fish. There are many others like crabs, some whales, and many other animals. Fewer algae is a problem because there is less food for us and many animals in the sea.

Global warming is doing many things to people as well as animals and plants. It is killing algae, but it is also destroying many huge forests. The pollution that causes global warming is linked to acid rain. Acid rain gradually destroys almost everything it touches. Global warming is also causing many more fires that wipe out whole forests. This happens because global warming can make the earth very hot. In forests, some plants and trees leaves can be so dry that they catch on fire.

http://library.thinkquest.org/CR0215471/global_warming.htm

An alarming sign is the steadily rising sea level in the last 2 centuries as seen on the picture below

Ok that looks very obvious so far. Lets see what the other side says.

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