...globally-averaged temperature is rising and the best available evidence to date suggests that most of the observed warming over the last 50 years is likely...to the increase in greenhouse gas concentrations. A recent study by the National Academy of Sciences (NAS) on climate change supports this theory. However,...

...and taking into account the remaining uncertainties, the IPCC scientists concluded that most of the observed warming over the last 50 years is likely...to the increase in greenhouse gas concentrations. • Based on scenarios of future human activities, global average temperature and sea level are projected...

..."In the light of the new evidence and taking into account the remaining uncertainties, most of the observed warming over the last 50 years is likely...to the increase in greenhouse gas concentrations." In addition it is stated that "it is very likely that the 20th century warming has contributed significantly...

...World Bank's work on climate change is predicated on IPCC's report that concludes that "most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas (GHG) concentrations." About 75 percent of the cumulative GHG emissions during the past 150 years have...

...greenhouse gases causing climate change? The IPCC's conclusion that most of the observed warming of the last 50 years is likely to have been due to the increase in greenhouse gas concentrations accurately reflects the current thinking of the scientific community on this issue. The stated degree...

...remaining uncertainties, most of the observed warming over the last 50 years is likely (66-90 per cent) to have been due to the increase in greenhouse gas concentrations. Furthermore, it is very likely (90-99 per cent) that the 2Oth century warming has contributed significantly to the observed sea level...

...Assessment Reports, approved in early 2001, found even stronger evidence and concluded, "most of the observed warming over the last 50 years is likely to have been due to the [human-induced] increase in greenhouse gas concentrations" (italics added).3 The IPCC offers convincing...

...evidence and taking into account the remaining uncertainties, most of the observed warming over the past 50 years is likely to have been due to the increase in greenhouse gas concentrations" (p. 10, IPCC Summary For Policymakers). The IPCC researchers used the word "likely" to represent a...

...and the best available evidence to date suggests that most of the observed warming over the last SO years is likely to have been due to the increase in greenhouse gas concentrations. A recent study by the National Academy of Sciences (NAS) on climate change supports this theory. However,...

...warming world and modeling studies indicate that most of the observed warming at the Earth's surface over the last 50 years is likely to have been due to human activities. Globally, the l990s were very likely to have been the warmest decade in the instrumental...