Many scientists are concerned about the increased concentration of carbon dioxide and other greenhouse gases in the atmosphere because it can begin to make earth unlivable. This would be because of extreme temperatures.
... the burning of fossil fuels, which is adding extra carbon dioxide to the greenhouse gases in the atmosphere.
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/)
Because the addition of extra carbon to the atmosphere is putting a load on the carbon cycle that is impossible to carry. The carbon cycle is not able to remove the extra CO2 which remains in the atmosphere as a greenhouse gas, absorbing more and more heat. This is causing global warming.
Scientists are concerned about carbon dioxide released from burning fossil fuels because it is a greenhouse gas that contributes to global warming and climate change. Excess carbon dioxide in the atmosphere traps heat, leading to rising global temperatures, melting ice caps, more extreme weather events, and other environmental impacts. Reducing carbon dioxide emissions is essential to combat climate change and its associated risks.
Putting rigorous, independent science to work to solve the planets most pressing problem is the main mission of the Union of Concerned Scientists. They were founded in 1969 during the height of the Vietnam War.
... the burning of fossil fuels, which is adding extra carbon dioxide to the greenhouse gases in the atmosphere.
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/)
It is important to worry about it, because carbon dioxide is a powerful greenhouse gas that is adding to the greenhouse effect in the atmosphere and contributing to global warming.
Scientists are concerned because the thaw in Siberia will release methane from the melting tundra. Methane is a powerful greenhouse gas which is contributing to global warming.
Ozone is present in the stratosphere of the earth's atmosphere. It is in this region that the scientists are concerned.
Union of Concerned Scientists was created in 1969.
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.
Al Gore is not a climate scientist, but a concerned citizen who listened to what the scientists had to say. He is doing what he can to alert the world about the impending disaster climate scientists predict if we do nothing to reduce our global emissions of greenhouse gases.
Because the addition of extra carbon to the atmosphere is putting a load on the carbon cycle that is impossible to carry. The carbon cycle is not able to remove the extra CO2 which remains in the atmosphere as a greenhouse gas, absorbing more and more heat. This is causing global warming.
Scientists are concerned about the ozone depletion. It is because this depletion can cause extinction of human race.
Scientists are concerned about carbon dioxide released from burning fossil fuels because it is a greenhouse gas that contributes to global warming and climate change. Excess carbon dioxide in the atmosphere traps heat, leading to rising global temperatures, melting ice caps, more extreme weather events, and other environmental impacts. Reducing carbon dioxide emissions is essential to combat climate change and its associated risks.
False.