Sentences with phrase «years is attributable to human activities»

The predominant summary statements from the TAR WGI strengthened the SAR's attribution statement: «An increasing body of observations gives a collective picture of a warming world and other changes in the climate system», and «There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.»

Under Watson's tenure, the IPCC last year produced its third comprehensive assessment of the state of climate science, concluding that» [t] here is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities,» and predicting that average global temperatures will rise between 3 and 10 degrees Fahrenheit by the endof the century — conclusions reaffirmed last spring at White House request by the National Academy of Sciences.

«Another unusual aspect of recent climate change is its cause: past climate changes were natural in origin, whereas most of the warming of the past 50 years is attributable to human activities.»

... past climate changes were natural in origin (see FAQ 6.1), whereas most of the warming of the past 50 years is attributable to human activities.

``... IPCC reported that «there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.»»

The 2001 report said: «There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.»

In 2001 it was claimed «there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities» and the current report concludes says it is: «90 % probable» that the recent warming is «due to the observed increase in anthropogenic greenhouse gas concentrations».

In the most recent Third Assessment Report (2001), IPCC wrote «There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities» This section is trying to cast doubt on the IPCC report, one of the most comprehensive climate change studies.

A few of the main points of the third assessment report issued in 2001 include: An increasing body of observations gives a collective picture of a warming world and other changes in the climate system; emissions of greenhouse gases and aerosols due to human activities continue to alter the atmosphere in ways that are expected to affect the climate; confidence in the ability of models to project future climate has increased; and there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.

Not exact matches

In their most recent report, published in 2001, the IPCC stated that most of the observed warming of the last 50 years is likely to be attributable to human activities (primarily, burning of fossil fuels, which increases atmospheric concentrations of greenhouse gases such as carbon dioxide).