Abstract
Carbon dioxide CO2 increased in the atmosphere and had a significant impact on global warming on the world as a whole. Libya had the share of high temperatures in recent years reached 22.6 0C compared to 1980, which was about 20.9 0C. It was noted that the increase in the time series of carbon dioxide over Libya, the value was 338.8 PPM in 1980, to reach 409.6 PPM in 2019. In this study, the statistical analysis of the data showed that there is a percentage of the effect gas carbon dioxide on the temperature up to 32.6%, and the relationship between positive, so that the correlation coefficient is 0.571. Through analysis of variance to test the significance of the quality of the model, there is a linear relationship between the two variables, and the value of t indicates that there is an effect of carbon dioxide on temperatures.