>"A review of the research literature concerning the environmental consequences of increased levels of atmospheric carbon dioxide leads to the conclusion that i

>"A review of the research literature concerning the environmental consequences of increased levels of atmospheric carbon dioxide leads to the conclusion that increases during the 20th and early 21st centuries have produced no deleterious effects upon Earth's weather and climate. Increased carbon dioxide has, however, markedly increased plant growth. Predictions of harmful climatic effects due to future increases in hydrocarbon use and minor greenhouse gases like CO2 do not conform to current experimental knowledge." I'm pretty sure this is non-controversial. Most of the dangers of Global Warming are _predicted_ based on _computer models_ of the future. They are not, strictly speaking, empirical.