...evidence and taking into account the remaining uncertainties, most of the observed warming over the last 50 years is likely to have been due 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...

...rising and the best available evidence to date suggests that most of the observed warming over the last 50 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,...

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

...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...

...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...

...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,...

...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...the current thinking of the scientific community on this issue. The stated degree of confidence in the IPCC assessment is higher today than it was 1 0...

...Climate Change (IPCC), released earlier this year, states that "most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations, and estimates that warming in the coming century will reach 1.4—5.8 C if emissions are not limited....

...rising, and the best available evidence to date suggests that most of the observed warming over the last 50 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,...

...evidence, and taking into account the remaining uncertainties, most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations." In 1995 the IPCC assessment concluded that "the balance of evidence suggests a discernible human influence...