[savedbygrace]

It's more than 100 percent on one end, because some natural forces — such as volcanoes and orbital cycle — are working to cool Earth, but are being overwhelmed by the effects of greenhouse gases, said study co-author Katharine Hayhoe of Texas Tech.

Regardless, it cannot be more than 100%.

[abclily]

That’s what I’m saying! How can the great Associated Press be this blatantly ignorant?