evidence: Factually Inaccurate: It is an unequivocal fact that Earth’s climate has warmed over the past century. Also, the conclusion that the human-caused increase of greenhouse gases is causing warming is supported by a wide range of empirical data. [...] Second, the link between increased greenhouse gas concentrations and warming continues to be supported by research in the last two decades. One study from 20011 used satellites to measure the type of energy entering and exiting Earth’s atmosphere and concluded that increases in greenhouse gases were responsible for extra heat measured between 1970 and 1997. The authors state that their results "provide direct experimental evidence for a significant increase in the Earth’s greenhouse effect that is consistent with concerns over radiative forcing of climate." (Here, the term "radiative forcing" refers to the extra energy trapped in the atmosphere by greenhouse gases, cause warming.) A more recent study2 arrived at similar conclusions, confirming predictions of the greenhouse effect in Earth’s atmosphere and providing "empirical evidence of how rising CO2 levels … are affecting the surface energy balance." In other words, rising CO2 was linked directly to warming, even when things like plant uptake of CO2 were considered.