Whats is global warming? how does it affect the earth and people? how did they find that this is hapening?

Question

Whats is global warming? how does it affect the earth and people? how did they find that this is hapening?

Answer 1

polution

we should take care more of our Earth ..

Answer 2

this should help.... http://en.wikipedia.org/wiki/Global_warm...

Answer 3

Global warming is the green house effect. We use oxygen, and breathe out carbon dioxide. Plants use CO2, and create oxygen, the opposite. When we burn fossil fuels, which are plants that have been fossilized over millions of years, we release the carbon dioxide still in them, and it rises up.

We can survive on this planet do to our atmosphere, which is like a nice warm blanket of varying gasses. When, as we do, we burn fossil fuels en Mass, we release lots of carbon dioxide (CO2) into the atmosphere, which, (Continuing the blanket metaphor) adds another blanket onto the earth, therefore heating it up further.

Global warming affects the planet, because as it warms up, it melts Greenland, Antarctica, and Glaciers around the world. The impacts of this include sea level rising, and if they continue to melt, whole lowland cities will be underwater. (Think Florida, parts of New York City, Etc Etc...) Its also shortening the Polar Bears hunting Season, starving them and making fewer Polar Bears able to reproduce. An Additional blow to the Polar Bears is that with the lack of Ice to rest on while they swim, they are starting to drown. The Polar Bears are only one example.

Scientists first found these changes many years ago, when they noticed the increasing temperature of the earth. Through Ice in Antarctica, Alaska, and at the North Pole, Scientists can measure the about of Carbon Dioxide in the air when the snow fell. Also the Glaciers on different mountains have melted, increasing mudslides and natural disasters. As we continue to pile blankets on top of the earth, Hurricanes, Floods, Droughts, and Diseases with become more common.  

That, is Global Warming in a Nutshell. There are several books written about this topic that I've read, and Al Gore's movie 'An Inconvenient Truth' does a good job on explaining it too.

Wow, I just wrote a whole essay for you. There goes another ten mins of my life...lol.

Answer 4

Global Warming is c**p, pure and simple. It has been here since the beginning of time. It is history. There is no such thing. Al Gore is just pissed off that we didn't elect him as president. Anyone that can believe him is an imbecile. " You are destroying the earth and causing global warming. Oh this is just my Computer enabled nuclear powered supersonic jet. It can hold the population of Chicago on it. There is only two people on it. What do you have? OH MY GOD!!! you drive a kia?! That is bad for the environment!!!!! nOT LIKE MY JET!! gET ONE TODAY!!" wHAT A CROCK!