what is green house gases and why is it dangerous for us humans and our atmosphere?

Answer 1

green house gasses are generally poisonous to humans, methane CO2 etc. They break ozone apart and pretty much just makes the sun more intense.

Answer 2

A greenhouse gas is any gas in the atmosphere that is transparent to energy in the shortwave spectrum, and opaque to energy in the infrared spectrum.

Essentially, greenhouse gases reduce the emissivity of the planet's atmosphere, slowing the rate at which energy can radiate from the atmosphere to space.

Greenhouse gases aren't particularly dangerous to us or the atmosphere, in fact, the planet would be a frozen wasteland without them, and you and I couldn't exist.

However, adding more greenhouse gases to the atmosphere will increase the planet's temperature, and humans have been doing just that over the past century. So it isn't the greenhouse gases that are the problem, but the effects of a rapidly warming planet.

Answer 3

Greenhouse gasses are those that block infrared light. Water vapor is one such gas and it is not dangerous at all. Carbon dioxide is another such gas. In addition to being a greenhouse gas, it is toxic at high concentrations. It exists naturally in the air at far lower concentrations than are dangerous. Any fire will give off carbon dioxide gas, which is why it isn't safe to have a fire in a closed room without a chimney to take the smoke and carbon dioxide out of the room.

All the coal and oil we are burning is adding carbon dioxide to the air faster than natural process are removing it. The increase isn't much. It is not nearly enough to be toxic. But it does increase the natural greenhouse effect a little bit. That is expected to cause the weather to get warmer. Not much warmer, just a few degrees, but enough to possibly change the weather in unpredictable ways and maybe enough to melt the polar ice caps. Melting the South polar ice cap and the ice in Greenland would cause melt water to fill up the ocean a little more than it is now. Sea levels could go up enough to flood some low lying coastal areas. Holland, Venice and New Orleans in particular would be in danger because they are already almost at or even below sea level already.

Answer 4

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.

Really good website for more information here:

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

Lots of numerical scientific data proving it real here:

http://en.wikipedia.org/wiki/Image:Climate_Change_Attribution.png
http://www.ipcc.ch/SPM2feb07.pdf

Proof that most scientists think it's real and mostly caused by us here:

http://en.wikipedia.org/wiki/Scientific_opinion_on_climate_change
http://www.sciencemag.org/cgi/content/full/306/5702/1686

Answer 5

Technically there is in simple terms one greenhouse gas and that is water vapor, you already know the stuff that makes up clouds and rain. Co2 isn't a greenhouse gas until eventually it has water vapor in it. the reason human beings say co2 is a greenhouse gas is even as they had to make co2 from baking soda they had to apply vinegar or yet another acid to break it down and get the co2. This procedure immediately saturates the co2 with water vapor and if that change into no longer sufficient in addition they positioned a dish of water in there so even as it turns milky searching they'll understand there is co2 contained in the attempt pattern. even as they warmth it up for the attempt this keeps the co2 pattern saturated with moisture so evidently the attempt will technically say it truly is a greenhouse gas using moisture. it truly is amazingly like utilizing loaded dice in a crap recreation or marked playing cards even as taking area in poker. once you stack the deck up the front you receives the outcomes you go with inspite of the very incontrovertible truth that maximum trustworthy human beings will call it dishonest.

Answer 6

Green house gasses are the gasses in our atmosphere that don't stop light from getting in, but stop other gasses, and heat from getting out. The heats just keep rising because the green house gasses are stopping all of the heat from getting out, so it stays, and its here to stay if we don't do something about it. The earth naturally heals itself and if all humans were wiped out so they couldn't create these gasses, global warming would be gone. But because we're here, we're just gonna have to stop trying to kill our world to save it.