The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) states: it is a greater than a 90 percent certainty that emissions of heat-trapping gases from human activities have caused “most of the observed increase in globally averaged temperatures since the mid-20th century.”[1] We all know that warming―and cooling―has happened in the past, and long before humans were around. Many factors (called “climate drivers”) can influence Earth’s climate―such as changes in the sun’s intensity and volcanic eruptions, as well as heat-trapping gases in the atmosphere.
So how do scientists know that today’s warming is primarily caused by humans putting too much carbon in the atmosphere when we burn coal, oil, and gas or cut down forests
Yes, I consider that humans are the main reason of global warming because most of the trees appeared on earth from billion years ago . They always blow oxygen to make atmosphere in air each early morning.Each branch or each foot of a tree makes the shade which be advantageous to the health of the humankind in the world.Oxygen is the supporter of combustion in air but a large quantity of the trees in the forests were chopped by the choppers each year, and so it makes earth's temperature be more hotter than itself since the year 1985 till now.If most of the trees in the world were killed maybe most of the humankind will be dead by the lack of oxygen .
It's fairly certain that we're contributing to it, but there are other causes too, especially volcanoes. However, just because there are natural causes that doesn't make adding to them a good idea.
Three other points:
1) Regardless of whether or not you believe that humans are causing global warming, it's certain that this surplus carbon dioxide is wreaking havoc in the oceans.
2) The loudmouth climate change skeptic 'scientists' are mostly in the pay of the oil companies and the American Republicans, virtually all other scientists agree that we're causing serious damage to the environment which is likely to have severe consequences.
3) CO2 production is just one of many ways that we're attacking the environment.
@Eryss: Yes, that's what I'm saying. Of course there are natural sources of CO2 but we've elevated CO2 levels dramatically, future generations will curse the 20th and 21st centuries, we're devastating the future for dollars.
I've already considered it, but the experts say no.
Top climate scientists say there is no man-made Global Warming.
The Great Global Warming Swindle
Yes, of course, everyday every second a man leaves a thrash everywhere and out of 7billion people.. there are 80% of people doing an air pollution... everywhere we have factories, vehicles and smoking netizens you cant keep them from doing so, we're the only productive living thing in earth...the humans who make good innovations can still harm the environment... smokes are compiled in the atmosphere they dont dissolve..
No I don't accept that, the warming effect of CO2 logarithmically diminishes with concentration, all the warming that CO2 can do has mostly been done, and was done before the industrial revolution, this is known by climate scientists but they reason that the very small warming will increase water vapor which a major greenhouse gas, they call this a positive feed back and would be seen by a tropical tropospheric hotspot.
They cannot find a tropical hotspot, and warming has paused for 17yrs while CO2 continues to rise so it looks as this there must as many negative feedbacks as well, like clouds and increased evaporative cooling.
I consider that probably the previous warming was a combination of solar activity and PDO AMO ocean cycles.
I have no political interest, or religious interest, financially I hope this doesn't affect my meager pension, I don't own a car, am very careful with energy use, not for environmental reasons, but because of my limited budget.
Yes, over desire and over consumption which is the red dragon in Revelation chapter 12
Revelation 12
1 And there appeared a great wonder in heaven: A woman clothed with the sun, and the moon was under her feet, and upon her head a crown of twelve stars.
2 And she was with child, and cried travailing in birth, and was pained ready to be delivered.
3 And there appeared another wonder in heaven: for behold, a great red dragon having seven heads, and ten horns, and seven crowns upon his heads;
4 And his tail drew the third part of the stars of heaven, and cast them to the earth. And the dragon stood before the woman, which was ready to be delivered, to devour her child, when she had brought it forth....
NO. What you are talking about when you say "Global Warming" is the Greenhouse Effect. That's what keeps us from freezing to death. The Human Contribution to the Greenhouse Effect is, if you count Water Vapor, about 0.28 percent. Water vapor accounts for about 95% of the total Greenhouse Effect. This prattle about CO2 is silly. We only contribute a small amount to total CO2, and that is a fraction of the Greenhouse Effect. If you know the basics, the rest is just silliness. I've known some wonderful people from your part of the World, may God Bless you in this terrible time. But don't worry about "Climate Change". Weather has always done things both wonderful and awful. Always will.
Yes, certainly humans are a large contributor to the warming that we've already seen, and we will like see much more if policies don't change.
Unfortunately there are many people that deny the human factor in global warming because of their political, financial or religious beliefs.
Yes. Global warming is happening
http://www.noaanews.noaa.gov/stories2010...
And we are causing it
http://c1planetsavecom.wpengine.netdna-c...
The ten warmest years in the instrumental record are 2010, 2005, 2009, 2007, 2002, 1998, 2006, 2003, 2011 and 2012.
http://data.giss.nasa.gov/gistemp/
So what A and Climate Realist are saying is: Yes. We are the main reason, despite there being other sources.
Sure I'll consider it. But you have to convince me of it.
Have considered it. Have rejected it. Not even close to be proven.
