Last month another IPCC science working group said ``there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activity,'' meaning the release of greenhouse gases like carbon dioxide into the atmosphere from fossil fuels.
(the warming; observed; T:over the last 50 years) (most of the warming; is; attributable to human activity) (another IPCC science working group; said; there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activity; T:Last month)
the warming most of the warming another IPCC science working group
observed is said
T:over the last 50 years
attributable to human activity
there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activity T:Last month