How much has the Sun and the lack of Volcanic activity played in recent "Global Warming"?

Question

CO2 in our atmosphere is measured in "Parts per Million".

Answer 1

There is no scientific evidence of significant changes in what you mentioned. The one thing that has changed in pollution.

CO2 is 30% higher than it has been for 650,000 years. Methane is 130% greater. These are two of the main pollutants humans put into the atmosphere in excess, and they are two of the primary greenhouse gases.

Look at the 'hockeystick', which shows a dramatic warming since 1950 after a fairly stable climate for 1000 years. In fact, the 10 hottest years in recorded history have all happened since 1990, with 2005 being the hottest, and 2006 is shaping up to maybe break that record.
(see links below)

How's that for proof of man's fault in this? There is ample proof, any real scientist will tell you that.

There has NEVER been an article doubting man's influence on global warming published in a peer-reviewed journal. A recent study of almost 1000 proved that.

Yes, the earth naturally heats and cools, but the rate and amount we are warming now is unprecedented in the recent geologic past. We are doing this, and we must stop it. This is not some political statement or rhetoric. This is science trying to educate a crass, ignorant public of the damage they are doing. The magnitude of temperature increase ALREADY is about 10x that of the 'little ice age' of the middle ages, and rate and amount are only going up.

Just to be clear, glacial and interglacial cycles are mainly controlled by astronomical fluctuations, but we have a detailed record of the last 7 cycles, and what the climate and CO2 is doing now is way different and extreme. The rate of increase is much higher than in the past AND the value itself is much higher.

HI CO2:
http://news.bbc.co.uk/1/hi/sci/tech/4467420.stm
HOCKEY STICK:
http://news.bbc.co.uk/1/hi/sci/tech/5109188.stm
General climate stuff:
http://news.bbc.co.uk/1/hi/sci/tech/3897061.stm

Answer 2

there is little or no warming that has not happened In the last 1000 yr. But most think that carbon dioxide is the problem if u think try to measure it. if u have an accurate device u can measure only 1 or 2 parts per million now what percent is that.look at our atmosphere ,% 20.9 ox %1.1 is green house Gas and the rest is nitrogen. u think there must be million of cf. of co2 but u cant find it. check this out someone is feeding u.that is because the Eng. of our spacecraft designed a 2 sides system for life support. that is the green plants they are starving for co2 is needed for there survival.and in tern the plants convert the co2 to ox inst that Neat. the nitrogen is about %78.9 and is almost inert for us but it works out to be a huge reserve of ox. as the nitrogen gets more alpha particles from space the nitrogen is trans-mutated to ox. how do u like that

Answer 3

Solar Activity is the prime cause of the heating of a planet. Our earth orbits the sun in a wobbling ellipsis, over a period of 180,000 (which cooresponds factually to ice ace periods).. We have been entering an interglacial period where the elliptical orbit of the earth around the sun is drawing closer during the summer. Said simply, the sun is the source of heat for the planet. Not C02.

Those that buy into Al Gore's schizophrenic rantings failing to look at the history of the earth longitudinally. Over the last 1/2 billion years our earth has been much warmer and much cooler.

Volcanic activity is at a level that is fairly constant, (except for the Permian era) when a 1500 square KM section of Siberia was a basaltic flow of unknown etiology.

Answer 4

The sun and the volcanos are playing the same role they have in the last 1000 or so years. Man's carbon dioxide emissions account for the sharp increase in global average temperature.

Answer 5

When a volcano erupts dust and debris are spread into the atmosphere, thereby blocking small amounts of sunlight from heating up the Earth. One could argue this is one way the Earth regulates it's temperature. EDIT - Check out this article:

http://www.livescience.com/environment/060727_inject_sulfur.html

Answer 6

I would say very little, if any.