World Total CO2 Emission vs. Yearly Average Anomaly Temperature (Deg C)

yes. this data makes it apparent that the is a relative increase in temperature and as well as an increase in CO2 levels. Although temperature varies more it is gradually increasing. You are not going to see a dramatic correlation in this graph because the time period is so small.

This only makes it apparent that there is a relationship with temperature and CO2, it cannot tell which is the cause and which is the effect. It could very well be that the temperature increase causes the CO2 to rise and not the other way around.

Temperature levels may well lead to increased concentration of CO2 and other "green house" gases, instead of the conventional, alarmist interpretation. Roy Spencer, a renown Climatologist, stated in testimony to the U.S. House of Representatives in March 2007, regarding ice-core based temperature data: " ... then virtually all of the evidence points to the temperature changes leading the carbon dioxide changes -- not the other way round – by at least 100 years." In fact, he goes on to state: “It is grossly misleading to say that the Earth’s surface temperature is the 'result' of a balance between absorbed sunlight and emitted infrared light, as it confuses cause and effect. Sunlight is what causes energizes) our weather, but it is the weather that then largely 'decides' how much greenhouse effect there will be. Simply put, the greenhouse effect is mostly the result of surface temperature-driven weather; it is not the cause of weather and surface temperatures." See numerous other writings by Dr’s Spencer and Christy on this topic.

To the Anonymous above... You fail to take not that it's listing CO2 EMISSIONS, meaning the man-produced CO2... Which seems to have a relationship... Are you implying that higher temperatures cause us to decide to make more CO2?...

Well said Anonymous. Its easy enough to estimate the possible levels of CO2 we will be emitting in the years to come. If the corrolation of CO2 vs temp. trend continues, it would be difficult to say that temperature caused china's and others booming coal driven economy.

For 160,000 years the ratio of CO2 in our atmosphere had remained at a range between 170ppms and 280ppms. Only recently we have seen ppms rise above 280. Has an increase of 0.7 degrees since pre industrial times caused the level of ppms or are we yet to see in the near future where this ppm rise is taking us. Its not too difficult to find out.

Some of you are ill informed alarmist. Vostek ice core samples show the Earth has cycled Temperature and CO2 over the last 420,000 years. Temperature deviation has ranged from +4 deg C to -9 deg C. The data shows the natural CO2 consentration is about 300 ppm. Compared to former geologic periods, concentrations of CO2 in our atmosphere are still very small and may not have a statistically measurable effect on global temperatures. Furthermore, the data suggests we are very due an iceage. If you don't take my word for it (you shouldn't take anyone's) look this up:

Sources : J.R. Petit, J. Jouzel et al. Climate and atmospheric history of the past 420 000 years from the Vostok ice core in Antarctica, Nature 399 (3rd June) pp 429-436, 1999.

Published in : Vital climate graphics, the impacts of climate change, UNEP and Grid Arendal, 2000.