Plants Need CO2 - Carbon Dioxide Emissions - Global Warming Climate Change Facts
Our mission is to educate the public on the positive effects of additional atmospheric CO2 and help prevent the inadvertent negative impact to human, plant and animal life if we reduce CO2
 
Home
 
    
Why CO2 is Good
 
    
Climate Change
 
    
Politics are Not Green
 
    
News & Media
 
    
Stay Informed
 
    
About Us
 
    
 
Additional Facts
3. Water vapor is responsible for clouds, humidity, rain, sleet and snow and up to 90% of the greenhouse effect.

Water vapor also represents about 95% of all greenhouse gasses and is responsible for up to 90% of the greenhouse gas effect. It is in water vapor’s contribution to cloud formation that leaves scientists wondering if water vapor’s contribution to global climate change is currently positive, negative or about neutral. Clouds, which are very bright on top, can reflect back into space a high percentage of the sun’s incoming rays that would otherwise heat the Earth but they can also help trap more heat. While climate models can be “tuned” to give a desired result in either direction, empirical (real) observations of Earth’s climate history indicate that water vapor’s current contribution to global climate change is probably neutral to negative. Otherwise, there would or could be runaway global warming because a temperature rise could cause a CO2 rise and if the CO2 rise caused a positive feedback, the cycle would continue on and on, which it has never done in Earth’s measurable climate history of the last 540 million years.

 Print This    Back

 
 
RELATED CONTENT

More Videos & Media ...

Carbon Dioxide in the atmosphere is essential to life on earth and is directly responsible for the food we eat and the oxygen we breathe.

31,478 American Scientists
There is no convincing scientific evidence that human release of carbon dioxide, methane, or other greenhouse gasses is causing or will, in the foreseeable future, cause catastrophic heating of the Earth's atmosphere and disruption of the Earth's climate.


Read more about the petition >>

More CO2 Facts

Benefits to plants >>

CO2 Myths

Plants need CO2 addresses the myth that purveyed the public dialog around CO2

Read more >>