0
Carbon Dioxide (CO2) and Methane.
"Methane is considered the No. 2 greenhouse gas based on the amount of warming it causes and the amount in the atmosphere. The total effect of methane on global warming is about one-third that of man-made carbon dioxide." (source: http://www.msnbc.msn.com/id/27400533/)
What else can I help you with?
Why would increased levels of greenhouse gases contribute to higher tempertures on earth?
Increased levels of greenhouse gases lead to higher temperatures on Earth because these gases trap heat in the atmosphere, preventing it from escaping into space. This process, known as the greenhouse effect, results in a warming of the planet's surface. The more greenhouse gases there are, the more heat is trapped, leading to an increase in global temperatures.
Why are scientists concerned that a rise in global temperature could start a feedback loop?
Greenhouse gases are trapped in the ocean and in other sinks such as peat bogs and the tundra covering large areas of northern Europe. In the same way as a warmed bottle of soft drink releases dissolved carbon dioxide when warmed, the dissolved carbon dioxide and other greenhouse gases will be released as ocean waters warm. The "ancient" greenhouse gases thus released combine with human-generated greenhouse gases, leading to further warming and more release of gases in what is known as a positive feedback loop. The positive feedback principle is, incidentally, exactly the same as when a microphone is placed too close to a loudspeaker in the same amplifier system. Any minute noise picked up by the microphone is amplified and fed back into the microphone, leading to the increasingly loud and unpleasant "scream" of the system.
How does an increase in greenhouse gas in the atmosphere contribute to an increase in global temperature?
Greenhouse gases trap heat from the sun in Earth's atmosphere, creating a "greenhouse effect". When the concentration of greenhouse gases increases, more heat is trapped, leading to an increase in global temperature. This phenomenon is a key driver of climate change.
How does the increase in greenhouse gases support the theory of global warming?
Part of the theory of global warming is that greenhouse gases capture the earth's heat. If more greenhouse gases are added to the atmosphere then more heat will be retained.We can measure that levels of greenhouse gases have increased, and we can measure that temperatures have risen. These measurements thus support the theory of global warming.
How does greenhouse gases affect the heat flow in and out of earth's atmosphere?
Greenhouse gases trap heat in the Earth's atmosphere by absorbing and re-emitting infrared radiation. This leads to an increase in the overall temperature of the Earth, a phenomenon known as the greenhouse effect. As the concentration of greenhouse gases in the atmosphere rises, more heat is trapped, causing global temperatures to increase.
Are scientists most concerned about the gases that have increased by the greatest percentage?
Carbon dioxide (CO2). This is the one that is largely contributing to global warming, and it's the one that we can possibly do something about, by reducing our burning of fossil fuels and by stopping deforestation. Other greenhouse gases are more powerful, like methane, but the amount so far is small compared with CO2.
Are greenhouse gases and natural gases ultimately the same?
A1. Natural gas is methane, CH4. It is a greenhouse gas, but far from the only one. Carbon dioxide, CO2, is the one that we are most concerned about.A2. But man made gases such as sulfur dioxide, and the fluorocarbons, (and more) also play their parts.
What brings about more greenhouse gases?
your but
What region has the least greenhouse gases?
The warmth of the sun and the global winds mix the greenhouse gases all round the world, so there is nowhere that has more, or less of the greenhouse gases.
What is the effect of higher levels of greenhouse gases?
More greenhouse gases trap more heat in the atmosphere, causing a global warming and climate change.
How does the global warming system work?
Most scientists agree that global warming is caused by the greenhouse effect. Greenhouse gases in our atmosphere (CO2, water vapour, methane etc.) absorb thermal (infra-red) radiation from the Sun. Because there are more and more greenhouse gases in our atmosphere, more heat is being absorbed. As the air heats up, the Earth's surface temperature is rising too.
Why do you have to exert more effort to keep greenhouse gases at viable levels?
because greenhouse gases r Strong and spread out very fast
Why would increased levels of greenhouse gases contribute to higher temperatures?
Increased levels of greenhouse gases trap more heat in the Earth's atmosphere, creating a "greenhouse effect." This leads to higher temperatures as more heat is retained and absorbed by the Earth's surface.
What is the current situation of the earth's atmosphere?
Well in terms of Global Warming, the burning of fossil fuels (gas for cars is one) releases more greenhouse gases, which mean there are more greenhouse gases in the atmosphere. These gases reflect sunlight BACK towards earth, keeping it warm. So the more greenhouse gases means the earth is warmer.
Why are some greenhouse gases and some not greenhouse gases?
"Greenhouse gas" is just a catchy term that means "traps heat." Due to the way the atmosphere is layered, some gases trap more heat than others; CO being about the weakest "greenhouse gas."
What is the connection between the cutting of Brazilian rainforest and greenhouse efffect?
The rain-forests are important to the environment because they filter gases, such as carbon and methane, common greenhouse gases, in the atmosphere. Without them, there is nothing to stop the greenhouse gases in the atmosphere. These gases then trap more heat, adding to global warming. THE GREENHOUSE EFFECT!
What do greenhouses gases trap?
Greenhouse gases trap infrared heat (from the sun) rising from the surface of the earth. More greenhouse gases trap more heat, and this is the situation now. Increasing levels of carbon dioxide (CO2) in particular are trapping more heat and causing a global warming.
